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Finding the Fourth Proportional to 461,155.64, 687,149.08 and 410,849.16

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Solution

The fourth proportional to 461,155.64, 687,149.08 and 410,849.16 is: 612,189.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,155.64 : 687,149.08 = 410,849.16 : x
  2. Step 2: Convert to fraction form
    461,155.64/687,149.08 = 410,849.16/x
  3. Step 3: Cross multiply
    461,155.64x = 687,149.08 × 410,849.16
  4. Step 4: Simplify right side
    461,155.64x = 282,314,622,312.77
  5. Step 5: Solve for x
    x = 282,314,622,312.77/461,155.64
  6. Step 6: Final answer
    x = 612,189.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.