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Finding the Fourth Proportional to 531,811.60, 798,152.60 and 527,664.40

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Solution

The fourth proportional to 531,811.60, 798,152.60 and 527,664.40 is: 791,928.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,811.60 : 798,152.60 = 527,664.40 : x
  2. Step 2: Convert to fraction form
    531,811.60/798,152.60 = 527,664.40/x
  3. Step 3: Cross multiply
    531,811.60x = 798,152.60 × 527,664.40
  4. Step 4: Simplify right side
    531,811.60x = 421,156,712,787.44
  5. Step 5: Solve for x
    x = 421,156,712,787.44/531,811.60
  6. Step 6: Final answer
    x = 791,928.41

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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.