Home / 1,248,409,796.55-1,722,791,789.40-676,178,612.70

Finding the Fourth Proportional to 1,248,409,796.55, 1,722,791,789.40 and 676,178,612.70

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Solution

The fourth proportional to 1,248,409,796.55, 1,722,791,789.40 and 676,178,612.70 is: 933,119,049.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,409,796.55 : 1,722,791,789.40 = 676,178,612.70 : x
  2. Step 2: Convert to fraction form
    1,248,409,796.55/1,722,791,789.40 = 676,178,612.70/x
  3. Step 3: Cross multiply
    1,248,409,796.55x = 1,722,791,789.40 × 676,178,612.70
  4. Step 4: Simplify right side
    1,248,409,796.55x = 1,164,914,962,127,442,688
  5. Step 5: Solve for x
    x = 1,164,914,962,127,442,688/1,248,409,796.55
  6. Step 6: Final answer
    x = 933,119,049.01

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.