Home / 749,425.61-1,034,222.45-409,915.73

Finding the Fourth Proportional to 749,425.61, 1,034,222.45 and 409,915.73

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Solution

The fourth proportional to 749,425.61, 1,034,222.45 and 409,915.73 is: 565,691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,425.61 : 1,034,222.45 = 409,915.73 : x
  2. Step 2: Convert to fraction form
    749,425.61/1,034,222.45 = 409,915.73/x
  3. Step 3: Cross multiply
    749,425.61x = 1,034,222.45 × 409,915.73
  4. Step 4: Simplify right side
    749,425.61x = 423,944,051,110.12
  5. Step 5: Solve for x
    x = 423,944,051,110.12/749,425.61
  6. Step 6: Final answer
    x = 565,691.97

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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.