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Finding the Fourth Proportional to 478,469.19, 717,776.40 and 162,852.30

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Solution

The fourth proportional to 478,469.19, 717,776.40 and 162,852.30 is: 244,303.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,469.19 : 717,776.40 = 162,852.30 : x
  2. Step 2: Convert to fraction form
    478,469.19/717,776.40 = 162,852.30/x
  3. Step 3: Cross multiply
    478,469.19x = 717,776.40 × 162,852.30
  4. Step 4: Simplify right side
    478,469.19x = 116,891,537,625.72
  5. Step 5: Solve for x
    x = 116,891,537,625.72/478,469.19
  6. Step 6: Final answer
    x = 244,303.17

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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.