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Finding the Fourth Proportional to 517,788.60, 714,180.18 and 345,619.76

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Solution

The fourth proportional to 517,788.60, 714,180.18 and 345,619.76 is: 476,709.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,788.60 : 714,180.18 = 345,619.76 : x
  2. Step 2: Convert to fraction form
    517,788.60/714,180.18 = 345,619.76/x
  3. Step 3: Cross multiply
    517,788.60x = 714,180.18 × 345,619.76
  4. Step 4: Simplify right side
    517,788.60x = 246,834,778,837.46
  5. Step 5: Solve for x
    x = 246,834,778,837.46/517,788.60
  6. Step 6: Final answer
    x = 476,709.57

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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.