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Finding the Fourth Proportional to 361,902.90, 542,854.35 and 268,590.90

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Solution

The fourth proportional to 361,902.90, 542,854.35 and 268,590.90 is: 402,886.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,902.90 : 542,854.35 = 268,590.90 : x
  2. Step 2: Convert to fraction form
    361,902.90/542,854.35 = 268,590.90/x
  3. Step 3: Cross multiply
    361,902.90x = 542,854.35 × 268,590.90
  4. Step 4: Simplify right side
    361,902.90x = 145,805,738,435.42
  5. Step 5: Solve for x
    x = 145,805,738,435.42/361,902.90
  6. Step 6: Final answer
    x = 402,886.35

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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.