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Finding the Fourth Proportional to 508,201.13, 701,445 and 345,133.55

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Solution

The fourth proportional to 508,201.13, 701,445 and 345,133.55 is: 476,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,201.13 : 701,445 = 345,133.55 : x
  2. Step 2: Convert to fraction form
    508,201.13/701,445 = 345,133.55/x
  3. Step 3: Cross multiply
    508,201.13x = 701,445 × 345,133.55
  4. Step 4: Simplify right side
    508,201.13x = 242,092,199,472.53
  5. Step 5: Solve for x
    x = 242,092,199,472.53/508,201.13
  6. Step 6: Final answer
    x = 476,370.85

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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.