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Finding the Fourth Proportional to 426,172.32, 587,585.91 and 272,958.60

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Solution

The fourth proportional to 426,172.32, 587,585.91 and 272,958.60 is: 376,342.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,172.32 : 587,585.91 = 272,958.60 : x
  2. Step 2: Convert to fraction form
    426,172.32/587,585.91 = 272,958.60/x
  3. Step 3: Cross multiply
    426,172.32x = 587,585.91 × 272,958.60
  4. Step 4: Simplify right side
    426,172.32x = 160,386,627,373.33
  5. Step 5: Solve for x
    x = 160,386,627,373.33/426,172.32
  6. Step 6: Final answer
    x = 376,342.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.