Home / 683,490.15-943,331.55-397,176.30

Finding the Fourth Proportional to 683,490.15, 943,331.55 and 397,176.30

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Solution

The fourth proportional to 683,490.15, 943,331.55 and 397,176.30 is: 548,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,490.15 : 943,331.55 = 397,176.30 : x
  2. Step 2: Convert to fraction form
    683,490.15/943,331.55 = 397,176.30/x
  3. Step 3: Cross multiply
    683,490.15x = 943,331.55 × 397,176.30
  4. Step 4: Simplify right side
    683,490.15x = 374,668,934,702.27
  5. Step 5: Solve for x
    x = 374,668,934,702.27/683,490.15
  6. Step 6: Final answer
    x = 548,170.20

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Double scale
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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.