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Finding the Fourth Proportional to 653,337.48, 978,015.96 and 525,791.64

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Solution

The fourth proportional to 653,337.48, 978,015.96 and 525,791.64 is: 787,085.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,337.48 : 978,015.96 = 525,791.64 : x
  2. Step 2: Convert to fraction form
    653,337.48/978,015.96 = 525,791.64/x
  3. Step 3: Cross multiply
    653,337.48x = 978,015.96 × 525,791.64
  4. Step 4: Simplify right side
    653,337.48x = 514,232,615,554.57
  5. Step 5: Solve for x
    x = 514,232,615,554.57/653,337.48
  6. Step 6: Final answer
    x = 787,085.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.