Home / 645,166.20-965,906.10-571,438.20

Finding the Fourth Proportional to 645,166.20, 965,906.10 and 571,438.20

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Solution

The fourth proportional to 645,166.20, 965,906.10 and 571,438.20 is: 855,524.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,166.20 : 965,906.10 = 571,438.20 : x
  2. Step 2: Convert to fraction form
    645,166.20/965,906.10 = 571,438.20/x
  3. Step 3: Cross multiply
    645,166.20x = 965,906.10 × 571,438.20
  4. Step 4: Simplify right side
    645,166.20x = 551,955,643,153.02
  5. Step 5: Solve for x
    x = 551,955,643,153.02/645,166.20
  6. Step 6: Final answer
    x = 855,524.74

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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.