Home / 814,116-1,122,744.90-508,220.76

Finding the Fourth Proportional to 814,116, 1,122,744.90 and 508,220.76

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Solution

The fourth proportional to 814,116, 1,122,744.90 and 508,220.76 is: 700,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,116 : 1,122,744.90 = 508,220.76 : x
  2. Step 2: Convert to fraction form
    814,116/1,122,744.90 = 508,220.76/x
  3. Step 3: Cross multiply
    814,116x = 1,122,744.90 × 508,220.76
  4. Step 4: Simplify right side
    814,116x = 570,602,266,364.12
  5. Step 5: Solve for x
    x = 570,602,266,364.12/814,116
  6. Step 6: Final answer
    x = 700,885.70

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Half scale
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Double scale
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Similar ratio
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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.