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Finding the Fourth Proportional to 473,167.80, 709,751.70 and 429,622.20

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Solution

The fourth proportional to 473,167.80, 709,751.70 and 429,622.20 is: 644,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,167.80 : 709,751.70 = 429,622.20 : x
  2. Step 2: Convert to fraction form
    473,167.80/709,751.70 = 429,622.20/x
  3. Step 3: Cross multiply
    473,167.80x = 709,751.70 × 429,622.20
  4. Step 4: Simplify right side
    473,167.80x = 304,925,086,807.74
  5. Step 5: Solve for x
    x = 304,925,086,807.74/473,167.80
  6. Step 6: Final answer
    x = 644,433.30

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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.