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Finding the Fourth Proportional to 1,707,944.76, 2,559,944.70 and 642,306.60

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Solution

The fourth proportional to 1,707,944.76, 2,559,944.70 and 642,306.60 is: 962,718.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707,944.76 : 2,559,944.70 = 642,306.60 : x
  2. Step 2: Convert to fraction form
    1,707,944.76/2,559,944.70 = 642,306.60/x
  3. Step 3: Cross multiply
    1,707,944.76x = 2,559,944.70 × 642,306.60
  4. Step 4: Simplify right side
    1,707,944.76x = 1,644,269,376,445.02
  5. Step 5: Solve for x
    x = 1,644,269,376,445.02/1,707,944.76
  6. Step 6: Final answer
    x = 962,718.12

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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.