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Finding the Fourth Proportional to 632,722.80, 947,701.80 and 491,372.40

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Solution

The fourth proportional to 632,722.80, 947,701.80 and 491,372.40 is: 735,985.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,722.80 : 947,701.80 = 491,372.40 : x
  2. Step 2: Convert to fraction form
    632,722.80/947,701.80 = 491,372.40/x
  3. Step 3: Cross multiply
    632,722.80x = 947,701.80 × 491,372.40
  4. Step 4: Simplify right side
    632,722.80x = 465,674,507,950.32
  5. Step 5: Solve for x
    x = 465,674,507,950.32/632,722.80
  6. Step 6: Final answer
    x = 735,985.03

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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.