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Finding the Fourth Proportional to 454,393.62, 681,128.67 and 188,298.90

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Solution

The fourth proportional to 454,393.62, 681,128.67 and 188,298.90 is: 282,257.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,393.62 : 681,128.67 = 188,298.90 : x
  2. Step 2: Convert to fraction form
    454,393.62/681,128.67 = 188,298.90/x
  3. Step 3: Cross multiply
    454,393.62x = 681,128.67 × 188,298.90
  4. Step 4: Simplify right side
    454,393.62x = 128,255,779,319.46
  5. Step 5: Solve for x
    x = 128,255,779,319.46/454,393.62
  6. Step 6: Final answer
    x = 282,257.00

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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.