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Finding the Fourth Proportional to 647,577.80, 971,366.70 and 579,926.60

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Solution

The fourth proportional to 647,577.80, 971,366.70 and 579,926.60 is: 869,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,577.80 : 971,366.70 = 579,926.60 : x
  2. Step 2: Convert to fraction form
    647,577.80/971,366.70 = 579,926.60/x
  3. Step 3: Cross multiply
    647,577.80x = 971,366.70 × 579,926.60
  4. Step 4: Simplify right side
    647,577.80x = 563,321,387,684.22
  5. Step 5: Solve for x
    x = 563,321,387,684.22/647,577.80
  6. Step 6: Final answer
    x = 869,889.90

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Similar ratio
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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.