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Finding the Fourth Proportional to 700,357.28, 1,050,864 and 345,177.68

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Solution

The fourth proportional to 700,357.28, 1,050,864 and 345,177.68 is: 517,928.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,357.28 : 1,050,864 = 345,177.68 : x
  2. Step 2: Convert to fraction form
    700,357.28/1,050,864 = 345,177.68/x
  3. Step 3: Cross multiply
    700,357.28x = 1,050,864 × 345,177.68
  4. Step 4: Simplify right side
    700,357.28x = 362,734,797,515.52
  5. Step 5: Solve for x
    x = 362,734,797,515.52/700,357.28
  6. Step 6: Final answer
    x = 517,928.22

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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.