Home / 521,230.38-719,258.18-291,735.11

Finding the Fourth Proportional to 521,230.38, 719,258.18 and 291,735.11

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Solution

The fourth proportional to 521,230.38, 719,258.18 and 291,735.11 is: 402,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,230.38 : 719,258.18 = 291,735.11 : x
  2. Step 2: Convert to fraction form
    521,230.38/719,258.18 = 291,735.11/x
  3. Step 3: Cross multiply
    521,230.38x = 719,258.18 × 291,735.11
  4. Step 4: Simplify right side
    521,230.38x = 209,832,860,664.41
  5. Step 5: Solve for x
    x = 209,832,860,664.41/521,230.38
  6. Step 6: Final answer
    x = 402,572.20

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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.