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Finding the Fourth Proportional to 582,590.08, 872,994.90 and 392,347

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Solution

The fourth proportional to 582,590.08, 872,994.90 and 392,347 is: 587,920.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,590.08 : 872,994.90 = 392,347 : x
  2. Step 2: Convert to fraction form
    582,590.08/872,994.90 = 392,347/x
  3. Step 3: Cross multiply
    582,590.08x = 872,994.90 × 392,347
  4. Step 4: Simplify right side
    582,590.08x = 342,516,930,030.30
  5. Step 5: Solve for x
    x = 342,516,930,030.30/582,590.08
  6. Step 6: Final answer
    x = 587,920.98

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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.