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Finding the Fourth Proportional to 361,970.90, 542,956.35 and 235,999.70

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Solution

The fourth proportional to 361,970.90, 542,956.35 and 235,999.70 is: 353,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,970.90 : 542,956.35 = 235,999.70 : x
  2. Step 2: Convert to fraction form
    361,970.90/542,956.35 = 235,999.70/x
  3. Step 3: Cross multiply
    361,970.90x = 542,956.35 × 235,999.70
  4. Step 4: Simplify right side
    361,970.90x = 128,137,535,713.10
  5. Step 5: Solve for x
    x = 128,137,535,713.10/361,970.90
  6. Step 6: Final answer
    x = 353,999.55

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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.