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Finding the Fourth Proportional to 371,344.55, 557,019.14 and 131,406.22

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Solution

The fourth proportional to 371,344.55, 557,019.14 and 131,406.22 is: 197,110.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,344.55 : 557,019.14 = 131,406.22 : x
  2. Step 2: Convert to fraction form
    371,344.55/557,019.14 = 131,406.22/x
  3. Step 3: Cross multiply
    371,344.55x = 557,019.14 × 131,406.22
  4. Step 4: Simplify right side
    371,344.55x = 73,195,779,655.05
  5. Step 5: Solve for x
    x = 73,195,779,655.05/371,344.55
  6. Step 6: Final answer
    x = 197,110.15

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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.