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Finding the Fourth Proportional to 671,920.40, 927,250.22 and 370,114.40

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Solution

The fourth proportional to 671,920.40, 927,250.22 and 370,114.40 is: 510,757.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,920.40 : 927,250.22 = 370,114.40 : x
  2. Step 2: Convert to fraction form
    671,920.40/927,250.22 = 370,114.40/x
  3. Step 3: Cross multiply
    671,920.40x = 927,250.22 × 370,114.40
  4. Step 4: Simplify right side
    671,920.40x = 343,188,655,114.20
  5. Step 5: Solve for x
    x = 343,188,655,114.20/671,920.40
  6. Step 6: Final answer
    x = 510,757.91

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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.