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Finding the Fourth Proportional to 1,929,813.42, 2,894,979.33 and 732,179.82

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Solution

The fourth proportional to 1,929,813.42, 2,894,979.33 and 732,179.82 is: 1,098,368.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929,813.42 : 2,894,979.33 = 732,179.82 : x
  2. Step 2: Convert to fraction form
    1,929,813.42/2,894,979.33 = 732,179.82/x
  3. Step 3: Cross multiply
    1,929,813.42x = 2,894,979.33 × 732,179.82
  4. Step 4: Simplify right side
    1,929,813.42x = 2,119,645,444,743.12
  5. Step 5: Solve for x
    x = 2,119,645,444,743.12/1,929,813.42
  6. Step 6: Final answer
    x = 1,098,368.07

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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.