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Finding the Fourth Proportional to 532,905.90, 798,970.05 and 217,200.30

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Solution

The fourth proportional to 532,905.90, 798,970.05 and 217,200.30 is: 325,641.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,905.90 : 798,970.05 = 217,200.30 : x
  2. Step 2: Convert to fraction form
    532,905.90/798,970.05 = 217,200.30/x
  3. Step 3: Cross multiply
    532,905.90x = 798,970.05 × 217,200.30
  4. Step 4: Simplify right side
    532,905.90x = 173,536,534,551.02
  5. Step 5: Solve for x
    x = 173,536,534,551.02/532,905.90
  6. Step 6: Final answer
    x = 325,641.98

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1.5x scale

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.