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Finding the Fourth Proportional to 723,443.61, 998,151.60 and 417,498.51

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Solution

The fourth proportional to 723,443.61, 998,151.60 and 417,498.51 is: 576,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,443.61 : 998,151.60 = 417,498.51 : x
  2. Step 2: Convert to fraction form
    723,443.61/998,151.60 = 417,498.51/x
  3. Step 3: Cross multiply
    723,443.61x = 998,151.60 × 417,498.51
  4. Step 4: Simplify right side
    723,443.61x = 416,726,805,754.12
  5. Step 5: Solve for x
    x = 416,726,805,754.12/723,443.61
  6. Step 6: Final answer
    x = 576,032.19

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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.