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Finding the Fourth Proportional to 560,349.61, 773,278.84 and 318,632.17

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Solution

The fourth proportional to 560,349.61, 773,278.84 and 318,632.17 is: 439,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,349.61 : 773,278.84 = 318,632.17 : x
  2. Step 2: Convert to fraction form
    560,349.61/773,278.84 = 318,632.17/x
  3. Step 3: Cross multiply
    560,349.61x = 773,278.84 × 318,632.17
  4. Step 4: Simplify right side
    560,349.61x = 246,391,514,804.28
  5. Step 5: Solve for x
    x = 246,391,514,804.28/560,349.61
  6. Step 6: Final answer
    x = 439,710.34

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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.