Home / 645,179.20-965,925.60-571,451.20

Finding the Fourth Proportional to 645,179.20, 965,925.60 and 571,451.20

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Solution

The fourth proportional to 645,179.20, 965,925.60 and 571,451.20 is: 855,544.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,179.20 : 965,925.60 = 571,451.20 : x
  2. Step 2: Convert to fraction form
    645,179.20/965,925.60 = 571,451.20/x
  3. Step 3: Cross multiply
    645,179.20x = 965,925.60 × 571,451.20
  4. Step 4: Simplify right side
    645,179.20x = 551,979,343,230.72
  5. Step 5: Solve for x
    x = 551,979,343,230.72/645,179.20
  6. Step 6: Final answer
    x = 855,544.23

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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.