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Finding the Fourth Proportional to 545,170.64, 817,755.75 and 145,801.04

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Solution

The fourth proportional to 545,170.64, 817,755.75 and 145,801.04 is: 218,701.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,170.64 : 817,755.75 = 145,801.04 : x
  2. Step 2: Convert to fraction form
    545,170.64/817,755.75 = 145,801.04/x
  3. Step 3: Cross multiply
    545,170.64x = 817,755.75 × 145,801.04
  4. Step 4: Simplify right side
    545,170.64x = 119,229,634,727.20
  5. Step 5: Solve for x
    x = 119,229,634,727.20/545,170.64
  6. Step 6: Final answer
    x = 218,701.50

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1.5x scale

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.