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Finding the Fourth Proportional to 331,356.30, 497,293.65 and 153,885.30

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Solution

The fourth proportional to 331,356.30, 497,293.65 and 153,885.30 is: 230,948.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,356.30 : 497,293.65 = 153,885.30 : x
  2. Step 2: Convert to fraction form
    331,356.30/497,293.65 = 153,885.30/x
  3. Step 3: Cross multiply
    331,356.30x = 497,293.65 × 153,885.30
  4. Step 4: Simplify right side
    331,356.30x = 76,526,182,518.35
  5. Step 5: Solve for x
    x = 76,526,182,518.35/331,356.30
  6. Step 6: Final answer
    x = 230,948.33

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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.