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Finding the Fourth Proportional to 488,730.40, 733,095.60 and 472,400.80

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Solution

The fourth proportional to 488,730.40, 733,095.60 and 472,400.80 is: 708,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,730.40 : 733,095.60 = 472,400.80 : x
  2. Step 2: Convert to fraction form
    488,730.40/733,095.60 = 472,400.80/x
  3. Step 3: Cross multiply
    488,730.40x = 733,095.60 × 472,400.80
  4. Step 4: Simplify right side
    488,730.40x = 346,314,947,916.48
  5. Step 5: Solve for x
    x = 346,314,947,916.48/488,730.40
  6. Step 6: Final answer
    x = 708,601.20

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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.