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Finding the Fourth Proportional to 1,229,465.86, 1,844,264.40 and 387,952

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Solution

The fourth proportional to 1,229,465.86, 1,844,264.40 and 387,952 is: 581,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,465.86 : 1,844,264.40 = 387,952 : x
  2. Step 2: Convert to fraction form
    1,229,465.86/1,844,264.40 = 387,952/x
  3. Step 3: Cross multiply
    1,229,465.86x = 1,844,264.40 × 387,952
  4. Step 4: Simplify right side
    1,229,465.86x = 715,486,062,508.80
  5. Step 5: Solve for x
    x = 715,486,062,508.80/1,229,465.86
  6. Step 6: Final answer
    x = 581,948.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.