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Finding the Fourth Proportional to 651,678.53, 898,996.79 and 565,516.58

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Solution

The fourth proportional to 651,678.53, 898,996.79 and 565,516.58 is: 780,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,678.53 : 898,996.79 = 565,516.58 : x
  2. Step 2: Convert to fraction form
    651,678.53/898,996.79 = 565,516.58/x
  3. Step 3: Cross multiply
    651,678.53x = 898,996.79 × 565,516.58
  4. Step 4: Simplify right side
    651,678.53x = 508,397,582,789.21
  5. Step 5: Solve for x
    x = 508,397,582,789.21/651,678.53
  6. Step 6: Final answer
    x = 780,135.55

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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.