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Finding the Fourth Proportional to 805,404, 1,205,477.28 and 592,115.40

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Solution

The fourth proportional to 805,404, 1,205,477.28 and 592,115.40 is: 886,240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,404 : 1,205,477.28 = 592,115.40 : x
  2. Step 2: Convert to fraction form
    805,404/1,205,477.28 = 592,115.40/x
  3. Step 3: Cross multiply
    805,404x = 1,205,477.28 × 592,115.40
  4. Step 4: Simplify right side
    805,404x = 713,781,661,838.11
  5. Step 5: Solve for x
    x = 713,781,661,838.11/805,404
  6. Step 6: Final answer
    x = 886,240.52

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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.