Home / 912,384.17-1,259,082.52-525,275.45

Finding the Fourth Proportional to 912,384.17, 1,259,082.52 and 525,275.45

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Solution

The fourth proportional to 912,384.17, 1,259,082.52 and 525,275.45 is: 724,875.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,384.17 : 1,259,082.52 = 525,275.45 : x
  2. Step 2: Convert to fraction form
    912,384.17/1,259,082.52 = 525,275.45/x
  3. Step 3: Cross multiply
    912,384.17x = 1,259,082.52 × 525,275.45
  4. Step 4: Simplify right side
    912,384.17x = 661,365,129,671.53
  5. Step 5: Solve for x
    x = 661,365,129,671.53/912,384.17
  6. Step 6: Final answer
    x = 724,875.72

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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.