Home / 910,115.48-1,256,209.17-528,265.28

Finding the Fourth Proportional to 910,115.48, 1,256,209.17 and 528,265.28

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Solution

The fourth proportional to 910,115.48, 1,256,209.17 and 528,265.28 is: 729,151.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,115.48 : 1,256,209.17 = 528,265.28 : x
  2. Step 2: Convert to fraction form
    910,115.48/1,256,209.17 = 528,265.28/x
  3. Step 3: Cross multiply
    910,115.48x = 1,256,209.17 × 528,265.28
  4. Step 4: Simplify right side
    910,115.48x = 663,611,688,928.62
  5. Step 5: Solve for x
    x = 663,611,688,928.62/910,115.48
  6. Step 6: Final answer
    x = 729,151.08

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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.