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Finding the Fourth Proportional to 515,000.60, 772,282.20 and 248,842.70

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Solution

The fourth proportional to 515,000.60, 772,282.20 and 248,842.70 is: 373,158.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,000.60 : 772,282.20 = 248,842.70 : x
  2. Step 2: Convert to fraction form
    515,000.60/772,282.20 = 248,842.70/x
  3. Step 3: Cross multiply
    515,000.60x = 772,282.20 × 248,842.70
  4. Step 4: Simplify right side
    515,000.60x = 192,176,787,809.94
  5. Step 5: Solve for x
    x = 192,176,787,809.94/515,000.60
  6. Step 6: Final answer
    x = 373,158.38

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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.