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Finding the Fourth Proportional to 577,169.40, 865,754.10 and 470,881.20

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Solution

The fourth proportional to 577,169.40, 865,754.10 and 470,881.20 is: 706,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,169.40 : 865,754.10 = 470,881.20 : x
  2. Step 2: Convert to fraction form
    577,169.40/865,754.10 = 470,881.20/x
  3. Step 3: Cross multiply
    577,169.40x = 865,754.10 × 470,881.20
  4. Step 4: Simplify right side
    577,169.40x = 407,667,329,512.92
  5. Step 5: Solve for x
    x = 407,667,329,512.92/577,169.40
  6. Step 6: Final answer
    x = 706,321.80

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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.