Home / 579,097.60-868,339.20-205,132.80

Finding the Fourth Proportional to 579,097.60, 868,339.20 and 205,132.80

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Solution

The fourth proportional to 579,097.60, 868,339.20 and 205,132.80 is: 307,590.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,097.60 : 868,339.20 = 205,132.80 : x
  2. Step 2: Convert to fraction form
    579,097.60/868,339.20 = 205,132.80/x
  3. Step 3: Cross multiply
    579,097.60x = 868,339.20 × 205,132.80
  4. Step 4: Simplify right side
    579,097.60x = 178,124,851,445.76
  5. Step 5: Solve for x
    x = 178,124,851,445.76/579,097.60
  6. Step 6: Final answer
    x = 307,590.38

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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.