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Finding the Fourth Proportional to 319,062.20, 478,506.90 and 94,422.20

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Solution

The fourth proportional to 319,062.20, 478,506.90 and 94,422.20 is: 141,607.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,062.20 : 478,506.90 = 94,422.20 : x
  2. Step 2: Convert to fraction form
    319,062.20/478,506.90 = 94,422.20/x
  3. Step 3: Cross multiply
    319,062.20x = 478,506.90 × 94,422.20
  4. Step 4: Simplify right side
    319,062.20x = 45,181,674,213.18
  5. Step 5: Solve for x
    x = 45,181,674,213.18/319,062.20
  6. Step 6: Final answer
    x = 141,607.73

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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.