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Finding the Fourth Proportional to 348,534.10, 522,109.95 and 207,874.90

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Solution

The fourth proportional to 348,534.10, 522,109.95 and 207,874.90 is: 311,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,534.10 : 522,109.95 = 207,874.90 : x
  2. Step 2: Convert to fraction form
    348,534.10/522,109.95 = 207,874.90/x
  3. Step 3: Cross multiply
    348,534.10x = 522,109.95 × 207,874.90
  4. Step 4: Simplify right side
    348,534.10x = 108,533,553,645.26
  5. Step 5: Solve for x
    x = 108,533,553,645.26/348,534.10
  6. Step 6: Final answer
    x = 311,400.10

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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.