Home / 459,146.60-687,359.10-341,340.20

Finding the Fourth Proportional to 459,146.60, 687,359.10 and 341,340.20

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Solution

The fourth proportional to 459,146.60, 687,359.10 and 341,340.20 is: 510,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,146.60 : 687,359.10 = 341,340.20 : x
  2. Step 2: Convert to fraction form
    459,146.60/687,359.10 = 341,340.20/x
  3. Step 3: Cross multiply
    459,146.60x = 687,359.10 × 341,340.20
  4. Step 4: Simplify right side
    459,146.60x = 234,623,292,665.82
  5. Step 5: Solve for x
    x = 234,623,292,665.82/459,146.60
  6. Step 6: Final answer
    x = 510,998.65

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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.