Home / 723,084.12-997,854.35-396,396.54

Finding the Fourth Proportional to 723,084.12, 997,854.35 and 396,396.54

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Solution

The fourth proportional to 723,084.12, 997,854.35 and 396,396.54 is: 547,026.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,084.12 : 997,854.35 = 396,396.54 : x
  2. Step 2: Convert to fraction form
    723,084.12/997,854.35 = 396,396.54/x
  3. Step 3: Cross multiply
    723,084.12x = 997,854.35 × 396,396.54
  4. Step 4: Simplify right side
    723,084.12x = 395,546,009,781.97
  5. Step 5: Solve for x
    x = 395,546,009,781.97/723,084.12
  6. Step 6: Final answer
    x = 547,026.27

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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.