Home / 498,567.70-687,196.19-353,187.22

Finding the Fourth Proportional to 498,567.70, 687,196.19 and 353,187.22

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Solution

The fourth proportional to 498,567.70, 687,196.19 and 353,187.22 is: 486,812.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,567.70 : 687,196.19 = 353,187.22 : x
  2. Step 2: Convert to fraction form
    498,567.70/687,196.19 = 353,187.22/x
  3. Step 3: Cross multiply
    498,567.70x = 687,196.19 × 353,187.22
  4. Step 4: Simplify right side
    498,567.70x = 242,708,909,919.53
  5. Step 5: Solve for x
    x = 242,708,909,919.53/498,567.70
  6. Step 6: Final answer
    x = 486,812.34

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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.