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Finding the Fourth Proportional to 444,378.04, 612,603.78 and 316,832.20

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Solution

The fourth proportional to 444,378.04, 612,603.78 and 316,832.20 is: 436,773.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,378.04 : 612,603.78 = 316,832.20 : x
  2. Step 2: Convert to fraction form
    444,378.04/612,603.78 = 316,832.20/x
  3. Step 3: Cross multiply
    444,378.04x = 612,603.78 × 316,832.20
  4. Step 4: Simplify right side
    444,378.04x = 194,092,603,345.72
  5. Step 5: Solve for x
    x = 194,092,603,345.72/444,378.04
  6. Step 6: Final answer
    x = 436,773.62

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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.