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Finding the Fourth Proportional to 479,373.57, 661,534.75 and 264,513.47

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Solution

The fourth proportional to 479,373.57, 661,534.75 and 264,513.47 is: 365,028.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,373.57 : 661,534.75 = 264,513.47 : x
  2. Step 2: Convert to fraction form
    479,373.57/661,534.75 = 264,513.47/x
  3. Step 3: Cross multiply
    479,373.57x = 661,534.75 × 264,513.47
  4. Step 4: Simplify right side
    479,373.57x = 174,984,852,248.08
  5. Step 5: Solve for x
    x = 174,984,852,248.08/479,373.57
  6. Step 6: Final answer
    x = 365,028.16

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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.