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Finding the Fourth Proportional to 674,248.11, 930,459.55 and 372,442.11

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Solution

The fourth proportional to 674,248.11, 930,459.55 and 372,442.11 is: 513,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,248.11 : 930,459.55 = 372,442.11 : x
  2. Step 2: Convert to fraction form
    674,248.11/930,459.55 = 372,442.11/x
  3. Step 3: Cross multiply
    674,248.11x = 930,459.55 × 372,442.11
  4. Step 4: Simplify right side
    674,248.11x = 346,542,318,071.65
  5. Step 5: Solve for x
    x = 346,542,318,071.65/674,248.11
  6. Step 6: Final answer
    x = 513,968.54

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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.