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Finding the Fourth Proportional to 978,746.96, 1,350,701.52 and 565,276.06

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Solution

The fourth proportional to 978,746.96, 1,350,701.52 and 565,276.06 is: 780,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,746.96 : 1,350,701.52 = 565,276.06 : x
  2. Step 2: Convert to fraction form
    978,746.96/1,350,701.52 = 565,276.06/x
  3. Step 3: Cross multiply
    978,746.96x = 1,350,701.52 × 565,276.06
  4. Step 4: Simplify right side
    978,746.96x = 763,519,229,731.56
  5. Step 5: Solve for x
    x = 763,519,229,731.56/978,746.96
  6. Step 6: Final answer
    x = 780,098.70

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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.