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Finding the Fourth Proportional to 676,854.52, 933,812.10 and 404,930.23

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Solution

The fourth proportional to 676,854.52, 933,812.10 and 404,930.23 is: 558,655.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,854.52 : 933,812.10 = 404,930.23 : x
  2. Step 2: Convert to fraction form
    676,854.52/933,812.10 = 404,930.23/x
  3. Step 3: Cross multiply
    676,854.52x = 933,812.10 × 404,930.23
  4. Step 4: Simplify right side
    676,854.52x = 378,128,748,429.78
  5. Step 5: Solve for x
    x = 378,128,748,429.78/676,854.52
  6. Step 6: Final answer
    x = 558,655.87

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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.