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Finding the Fourth Proportional to 280,151.74, 386,608.88 and 152,827.30

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Solution

The fourth proportional to 280,151.74, 386,608.88 and 152,827.30 is: 210,901.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,151.74 : 386,608.88 = 152,827.30 : x
  2. Step 2: Convert to fraction form
    280,151.74/386,608.88 = 152,827.30/x
  3. Step 3: Cross multiply
    280,151.74x = 386,608.88 × 152,827.30
  4. Step 4: Simplify right side
    280,151.74x = 59,084,391,286.42
  5. Step 5: Solve for x
    x = 59,084,391,286.42/280,151.74
  6. Step 6: Final answer
    x = 210,901.39

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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.