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Finding the Fourth Proportional to 723,186.88, 998,006.92 and 417,326.74

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Solution

The fourth proportional to 723,186.88, 998,006.92 and 417,326.74 is: 575,916.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,186.88 : 998,006.92 = 417,326.74 : x
  2. Step 2: Convert to fraction form
    723,186.88/998,006.92 = 417,326.74/x
  3. Step 3: Cross multiply
    723,186.88x = 998,006.92 × 417,326.74
  4. Step 4: Simplify right side
    723,186.88x = 416,494,970,882.71
  5. Step 5: Solve for x
    x = 416,494,970,882.71/723,186.88
  6. Step 6: Final answer
    x = 575,916.11

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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.