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Finding the Fourth Proportional to 475,220.53, 712,771.26 and 155,345.59

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Solution

The fourth proportional to 475,220.53, 712,771.26 and 155,345.59 is: 232,998.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,220.53 : 712,771.26 = 155,345.59 : x
  2. Step 2: Convert to fraction form
    475,220.53/712,771.26 = 155,345.59/x
  3. Step 3: Cross multiply
    475,220.53x = 712,771.26 × 155,345.59
  4. Step 4: Simplify right side
    475,220.53x = 110,725,871,919.74
  5. Step 5: Solve for x
    x = 110,725,871,919.74/475,220.53
  6. Step 6: Final answer
    x = 232,998.92

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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.