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Finding the Fourth Proportional to 476,666.04, 657,807.36 and 261,815.16

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Solution

The fourth proportional to 476,666.04, 657,807.36 and 261,815.16 is: 361,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,666.04 : 657,807.36 = 261,815.16 : x
  2. Step 2: Convert to fraction form
    476,666.04/657,807.36 = 261,815.16/x
  3. Step 3: Cross multiply
    476,666.04x = 657,807.36 × 261,815.16
  4. Step 4: Simplify right side
    476,666.04x = 172,223,939,207.58
  5. Step 5: Solve for x
    x = 172,223,939,207.58/476,666.04
  6. Step 6: Final answer
    x = 361,309.44

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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.