Home / 579,444.40-868,000.20-402,151.60

Finding the Fourth Proportional to 579,444.40, 868,000.20 and 402,151.60

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Solution

The fourth proportional to 579,444.40, 868,000.20 and 402,151.60 is: 602,417.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,444.40 : 868,000.20 = 402,151.60 : x
  2. Step 2: Convert to fraction form
    579,444.40/868,000.20 = 402,151.60/x
  3. Step 3: Cross multiply
    579,444.40x = 868,000.20 × 402,151.60
  4. Step 4: Simplify right side
    579,444.40x = 349,067,669,230.32
  5. Step 5: Solve for x
    x = 349,067,669,230.32/579,444.40
  6. Step 6: Final answer
    x = 602,417.88

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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.