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Finding the Fourth Proportional to 348,534.60, 522,110.70 and 207,875.40

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Solution

The fourth proportional to 348,534.60, 522,110.70 and 207,875.40 is: 311,400.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,534.60 : 522,110.70 = 207,875.40 : x
  2. Step 2: Convert to fraction form
    348,534.60/522,110.70 = 207,875.40/x
  3. Step 3: Cross multiply
    348,534.60x = 522,110.70 × 207,875.40
  4. Step 4: Simplify right side
    348,534.60x = 108,533,970,606.78
  5. Step 5: Solve for x
    x = 108,533,970,606.78/348,534.60
  6. Step 6: Final answer
    x = 311,400.85

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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.