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Finding the Fourth Proportional to 701,903.80, 1,052,855.70 and 613,330.30

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Solution

The fourth proportional to 701,903.80, 1,052,855.70 and 613,330.30 is: 919,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,903.80 : 1,052,855.70 = 613,330.30 : x
  2. Step 2: Convert to fraction form
    701,903.80/1,052,855.70 = 613,330.30/x
  3. Step 3: Cross multiply
    701,903.80x = 1,052,855.70 × 613,330.30
  4. Step 4: Simplify right side
    701,903.80x = 645,748,302,337.71
  5. Step 5: Solve for x
    x = 645,748,302,337.71/701,903.80
  6. Step 6: Final answer
    x = 919,995.45

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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.