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Finding the Fourth Proportional to 652,221.70, 978,332.55 and 333,357.10

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Solution

The fourth proportional to 652,221.70, 978,332.55 and 333,357.10 is: 500,035.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,221.70 : 978,332.55 = 333,357.10 : x
  2. Step 2: Convert to fraction form
    652,221.70/978,332.55 = 333,357.10/x
  3. Step 3: Cross multiply
    652,221.70x = 978,332.55 × 333,357.10
  4. Step 4: Simplify right side
    652,221.70x = 326,134,101,703.61
  5. Step 5: Solve for x
    x = 326,134,101,703.61/652,221.70
  6. Step 6: Final answer
    x = 500,035.65

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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.