Home / 579,570.40-868,189.20-402,277.60

Finding the Fourth Proportional to 579,570.40, 868,189.20 and 402,277.60

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Solution

The fourth proportional to 579,570.40, 868,189.20 and 402,277.60 is: 602,606.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,570.40 : 868,189.20 = 402,277.60 : x
  2. Step 2: Convert to fraction form
    579,570.40/868,189.20 = 402,277.60/x
  3. Step 3: Cross multiply
    579,570.40x = 868,189.20 × 402,277.60
  4. Step 4: Simplify right side
    579,570.40x = 349,253,067,721.92
  5. Step 5: Solve for x
    x = 349,253,067,721.92/579,570.40
  6. Step 6: Final answer
    x = 602,606.81

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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.