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Finding the Fourth Proportional to 403,557.54, 556,860.66 and 231,466.62

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Solution

The fourth proportional to 403,557.54, 556,860.66 and 231,466.62 is: 319,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,557.54 : 556,860.66 = 231,466.62 : x
  2. Step 2: Convert to fraction form
    403,557.54/556,860.66 = 231,466.62/x
  3. Step 3: Cross multiply
    403,557.54x = 556,860.66 × 231,466.62
  4. Step 4: Simplify right side
    403,557.54x = 128,894,654,781.17
  5. Step 5: Solve for x
    x = 128,894,654,781.17/403,557.54
  6. Step 6: Final answer
    x = 319,395.98

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1.5x scale

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.