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Finding the Fourth Proportional to 547,752.60, 821,628.90 and 248,117.40

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Solution

The fourth proportional to 547,752.60, 821,628.90 and 248,117.40 is: 372,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,752.60 : 821,628.90 = 248,117.40 : x
  2. Step 2: Convert to fraction form
    547,752.60/821,628.90 = 248,117.40/x
  3. Step 3: Cross multiply
    547,752.60x = 821,628.90 × 248,117.40
  4. Step 4: Simplify right side
    547,752.60x = 203,860,426,432.86
  5. Step 5: Solve for x
    x = 203,860,426,432.86/547,752.60
  6. Step 6: Final answer
    x = 372,176.10

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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.