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Finding the Fourth Proportional to 649,931.49, 897,130.92 and 446,655.30

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Solution

The fourth proportional to 649,931.49, 897,130.92 and 446,655.30 is: 616,539.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,931.49 : 897,130.92 = 446,655.30 : x
  2. Step 2: Convert to fraction form
    649,931.49/897,130.92 = 446,655.30/x
  3. Step 3: Cross multiply
    649,931.49x = 897,130.92 × 446,655.30
  4. Step 4: Simplify right side
    649,931.49x = 400,708,280,211.88
  5. Step 5: Solve for x
    x = 400,708,280,211.88/649,931.49
  6. Step 6: Final answer
    x = 616,539.26

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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.