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Finding the Fourth Proportional to 560,468.16, 773,463.10 and 318,785.48

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Solution

The fourth proportional to 560,468.16, 773,463.10 and 318,785.48 is: 439,933.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,468.16 : 773,463.10 = 318,785.48 : x
  2. Step 2: Convert to fraction form
    560,468.16/773,463.10 = 318,785.48/x
  3. Step 3: Cross multiply
    560,468.16x = 773,463.10 × 318,785.48
  4. Step 4: Simplify right side
    560,468.16x = 246,568,805,595.79
  5. Step 5: Solve for x
    x = 246,568,805,595.79/560,468.16
  6. Step 6: Final answer
    x = 439,933.65

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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.