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Finding the Fourth Proportional to 560,348.61, 773,277.46 and 318,631.17

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Solution

The fourth proportional to 560,348.61, 773,277.46 and 318,631.17 is: 439,708.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,348.61 : 773,277.46 = 318,631.17 : x
  2. Step 2: Convert to fraction form
    560,348.61/773,277.46 = 318,631.17/x
  3. Step 3: Cross multiply
    560,348.61x = 773,277.46 × 318,631.17
  4. Step 4: Simplify right side
    560,348.61x = 246,390,301,814.43
  5. Step 5: Solve for x
    x = 246,390,301,814.43/560,348.61
  6. Step 6: Final answer
    x = 439,708.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.