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Finding the Fourth Proportional to 614,433.20, 921,649.80 and 564,666.80

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Solution

The fourth proportional to 614,433.20, 921,649.80 and 564,666.80 is: 847,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,433.20 : 921,649.80 = 564,666.80 : x
  2. Step 2: Convert to fraction form
    614,433.20/921,649.80 = 564,666.80/x
  3. Step 3: Cross multiply
    614,433.20x = 921,649.80 × 564,666.80
  4. Step 4: Simplify right side
    614,433.20x = 520,425,043,286.64
  5. Step 5: Solve for x
    x = 520,425,043,286.64/614,433.20
  6. Step 6: Final answer
    x = 847,000.20

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Similar ratio
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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.