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Finding the Fourth Proportional to 665,787.60, 999,750.60 and 616,669.20

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Solution

The fourth proportional to 665,787.60, 999,750.60 and 616,669.20 is: 925,994.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,787.60 : 999,750.60 = 616,669.20 : x
  2. Step 2: Convert to fraction form
    665,787.60/999,750.60 = 616,669.20/x
  3. Step 3: Cross multiply
    665,787.60x = 999,750.60 × 616,669.20
  4. Step 4: Simplify right side
    665,787.60x = 616,515,402,701.52
  5. Step 5: Solve for x
    x = 616,515,402,701.52/665,787.60
  6. Step 6: Final answer
    x = 925,994.12

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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.