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Finding the Fourth Proportional to 586,419.60, 879,629.40 and 187,089.60

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Solution

The fourth proportional to 586,419.60, 879,629.40 and 187,089.60 is: 280,634.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,419.60 : 879,629.40 = 187,089.60 : x
  2. Step 2: Convert to fraction form
    586,419.60/879,629.40 = 187,089.60/x
  3. Step 3: Cross multiply
    586,419.60x = 879,629.40 × 187,089.60
  4. Step 4: Simplify right side
    586,419.60x = 164,569,512,594.24
  5. Step 5: Solve for x
    x = 164,569,512,594.24/586,419.60
  6. Step 6: Final answer
    x = 280,634.40

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Double scale
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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.