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Finding the Fourth Proportional to 586,193.88, 808,948.98 and 317,921.88

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Solution

The fourth proportional to 586,193.88, 808,948.98 and 317,921.88 is: 438,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,193.88 : 808,948.98 = 317,921.88 : x
  2. Step 2: Convert to fraction form
    586,193.88/808,948.98 = 317,921.88/x
  3. Step 3: Cross multiply
    586,193.88x = 808,948.98 × 317,921.88
  4. Step 4: Simplify right side
    586,193.88x = 257,182,580,545.68
  5. Step 5: Solve for x
    x = 257,182,580,545.68/586,193.88
  6. Step 6: Final answer
    x = 438,732.97

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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.