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Finding the Fourth Proportional to 585,452.80, 878,179.20 and 164,742.40

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Solution

The fourth proportional to 585,452.80, 878,179.20 and 164,742.40 is: 247,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,452.80 : 878,179.20 = 164,742.40 : x
  2. Step 2: Convert to fraction form
    585,452.80/878,179.20 = 164,742.40/x
  3. Step 3: Cross multiply
    585,452.80x = 878,179.20 × 164,742.40
  4. Step 4: Simplify right side
    585,452.80x = 144,673,349,038.08
  5. Step 5: Solve for x
    x = 144,673,349,038.08/585,452.80
  6. Step 6: Final answer
    x = 247,113.60

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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.