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Finding the Fourth Proportional to 461,259.77, 636,539.51 and 257,305.61

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Solution

The fourth proportional to 461,259.77, 636,539.51 and 257,305.61 is: 355,082.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,259.77 : 636,539.51 = 257,305.61 : x
  2. Step 2: Convert to fraction form
    461,259.77/636,539.51 = 257,305.61/x
  3. Step 3: Cross multiply
    461,259.77x = 636,539.51 × 257,305.61
  4. Step 4: Simplify right side
    461,259.77x = 163,785,189,144.26
  5. Step 5: Solve for x
    x = 163,785,189,144.26/461,259.77
  6. Step 6: Final answer
    x = 355,082.32

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1.5x scale

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.