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Finding the Fourth Proportional to 560,359.56, 773,264.68 and 318,700.92

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Solution

The fourth proportional to 560,359.56, 773,264.68 and 318,700.92 is: 439,789.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,359.56 : 773,264.68 = 318,700.92 : x
  2. Step 2: Convert to fraction form
    560,359.56/773,264.68 = 318,700.92/x
  3. Step 3: Cross multiply
    560,359.56x = 773,264.68 × 318,700.92
  4. Step 4: Simplify right side
    560,359.56x = 246,440,164,919.51
  5. Step 5: Solve for x
    x = 246,440,164,919.51/560,359.56
  6. Step 6: Final answer
    x = 439,789.35

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1.5x scale

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.