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Finding the Fourth Proportional to 529,701.90, 793,516.05 and 318,713.10

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Solution

The fourth proportional to 529,701.90, 793,516.05 and 318,713.10 is: 477,445.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,701.90 : 793,516.05 = 318,713.10 : x
  2. Step 2: Convert to fraction form
    529,701.90/793,516.05 = 318,713.10/x
  3. Step 3: Cross multiply
    529,701.90x = 793,516.05 × 318,713.10
  4. Step 4: Simplify right side
    529,701.90x = 252,903,960,195.26
  5. Step 5: Solve for x
    x = 252,903,960,195.26/529,701.90
  6. Step 6: Final answer
    x = 477,445.82

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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.