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Finding the Fourth Proportional to 613,834.68, 917,193.75 and 480,398.52

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Solution

The fourth proportional to 613,834.68, 917,193.75 and 480,398.52 is: 717,813.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,834.68 : 917,193.75 = 480,398.52 : x
  2. Step 2: Convert to fraction form
    613,834.68/917,193.75 = 480,398.52/x
  3. Step 3: Cross multiply
    613,834.68x = 917,193.75 × 480,398.52
  4. Step 4: Simplify right side
    613,834.68x = 440,618,520,053.25
  5. Step 5: Solve for x
    x = 440,618,520,053.25/613,834.68
  6. Step 6: Final answer
    x = 717,813.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.