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Finding the Fourth Proportional to 455,505.59, 683,184.55 and 202,726.66

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Solution

The fourth proportional to 455,505.59, 683,184.55 and 202,726.66 is: 304,057.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,505.59 : 683,184.55 = 202,726.66 : x
  2. Step 2: Convert to fraction form
    455,505.59/683,184.55 = 202,726.66/x
  3. Step 3: Cross multiply
    455,505.59x = 683,184.55 × 202,726.66
  4. Step 4: Simplify right side
    455,505.59x = 138,499,721,985.10
  5. Step 5: Solve for x
    x = 138,499,721,985.10/455,505.59
  6. Step 6: Final answer
    x = 304,057.13

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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.