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Finding the Fourth Proportional to 675,890.66, 932,665.80 and 403,904.42

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Solution

The fourth proportional to 675,890.66, 932,665.80 and 403,904.42 is: 557,350.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,890.66 : 932,665.80 = 403,904.42 : x
  2. Step 2: Convert to fraction form
    675,890.66/932,665.80 = 403,904.42/x
  3. Step 3: Cross multiply
    675,890.66x = 932,665.80 × 403,904.42
  4. Step 4: Simplify right side
    675,890.66x = 376,707,839,002.84
  5. Step 5: Solve for x
    x = 376,707,839,002.84/675,890.66
  6. Step 6: Final answer
    x = 557,350.27

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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.