Home / 497,919.39-687,125.52-283,059.51

Finding the Fourth Proportional to 497,919.39, 687,125.52 and 283,059.51

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Solution

The fourth proportional to 497,919.39, 687,125.52 and 283,059.51 is: 390,620.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,919.39 : 687,125.52 = 283,059.51 : x
  2. Step 2: Convert to fraction form
    497,919.39/687,125.52 = 283,059.51/x
  3. Step 3: Cross multiply
    497,919.39x = 687,125.52 × 283,059.51
  4. Step 4: Simplify right side
    497,919.39x = 194,497,412,999.70
  5. Step 5: Solve for x
    x = 194,497,412,999.70/497,919.39
  6. Step 6: Final answer
    x = 390,620.28

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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.