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Finding the Fourth Proportional to 663,501.78, 995,546.70 and 347,883.66

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Solution

The fourth proportional to 663,501.78, 995,546.70 and 347,883.66 is: 521,979.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,501.78 : 995,546.70 = 347,883.66 : x
  2. Step 2: Convert to fraction form
    663,501.78/995,546.70 = 347,883.66/x
  3. Step 3: Cross multiply
    663,501.78x = 995,546.70 × 347,883.66
  4. Step 4: Simplify right side
    663,501.78x = 346,334,429,696.92
  5. Step 5: Solve for x
    x = 346,334,429,696.92/663,501.78
  6. Step 6: Final answer
    x = 521,979.65

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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.