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Finding the Fourth Proportional to 607,788.10, 910,479.30 and 532,992.70

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Solution

The fourth proportional to 607,788.10, 910,479.30 and 532,992.70 is: 798,434.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,788.10 : 910,479.30 = 532,992.70 : x
  2. Step 2: Convert to fraction form
    607,788.10/910,479.30 = 532,992.70/x
  3. Step 3: Cross multiply
    607,788.10x = 910,479.30 × 532,992.70
  4. Step 4: Simplify right side
    607,788.10x = 485,278,820,401.11
  5. Step 5: Solve for x
    x = 485,278,820,401.11/607,788.10
  6. Step 6: Final answer
    x = 798,434.22

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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.