Home / 910,390.28-1,256,151.04-523,130.88

Finding the Fourth Proportional to 910,390.28, 1,256,151.04 and 523,130.88

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Solution

The fourth proportional to 910,390.28, 1,256,151.04 and 523,130.88 is: 721,812.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,390.28 : 1,256,151.04 = 523,130.88 : x
  2. Step 2: Convert to fraction form
    910,390.28/1,256,151.04 = 523,130.88/x
  3. Step 3: Cross multiply
    910,390.28x = 1,256,151.04 × 523,130.88
  4. Step 4: Simplify right side
    910,390.28x = 657,131,406,122.88
  5. Step 5: Solve for x
    x = 657,131,406,122.88/910,390.28
  6. Step 6: Final answer
    x = 721,812.85

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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.