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Finding the Fourth Proportional to 479,564.82, 661,752.25 and 264,690.95

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Solution

The fourth proportional to 479,564.82, 661,752.25 and 264,690.95 is: 365,247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,564.82 : 661,752.25 = 264,690.95 : x
  2. Step 2: Convert to fraction form
    479,564.82/661,752.25 = 264,690.95/x
  3. Step 3: Cross multiply
    479,564.82x = 661,752.25 × 264,690.95
  4. Step 4: Simplify right side
    479,564.82x = 175,159,827,746.65
  5. Step 5: Solve for x
    x = 175,159,827,746.65/479,564.82
  6. Step 6: Final answer
    x = 365,247.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.