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Finding the Fourth Proportional to 579,306.40, 868,959.60 and 295,871.20

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Solution

The fourth proportional to 579,306.40, 868,959.60 and 295,871.20 is: 443,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,306.40 : 868,959.60 = 295,871.20 : x
  2. Step 2: Convert to fraction form
    579,306.40/868,959.60 = 295,871.20/x
  3. Step 3: Cross multiply
    579,306.40x = 868,959.60 × 295,871.20
  4. Step 4: Simplify right side
    579,306.40x = 257,100,119,603.52
  5. Step 5: Solve for x
    x = 257,100,119,603.52/579,306.40
  6. Step 6: Final answer
    x = 443,806.80

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Similar ratio
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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.