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Finding the Fourth Proportional to 560,686.54, 773,663.72 and 315,635.92

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Solution

The fourth proportional to 560,686.54, 773,663.72 and 315,635.92 is: 435,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,686.54 : 773,663.72 = 315,635.92 : x
  2. Step 2: Convert to fraction form
    560,686.54/773,663.72 = 315,635.92/x
  3. Step 3: Cross multiply
    560,686.54x = 773,663.72 × 315,635.92
  4. Step 4: Simplify right side
    560,686.54x = 244,196,060,032.82
  5. Step 5: Solve for x
    x = 244,196,060,032.82/560,686.54
  6. Step 6: Final answer
    x = 435,530.45

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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.