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Finding the Fourth Proportional to 1,411,938.04, 1,948,489.55 and 767,358.27

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Solution

The fourth proportional to 1,411,938.04, 1,948,489.55 and 767,358.27 is: 1,058,962.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,938.04 : 1,948,489.55 = 767,358.27 : x
  2. Step 2: Convert to fraction form
    1,411,938.04/1,948,489.55 = 767,358.27/x
  3. Step 3: Cross multiply
    1,411,938.04x = 1,948,489.55 × 767,358.27
  4. Step 4: Simplify right side
    1,411,938.04x = 1,495,189,570,201.08
  5. Step 5: Solve for x
    x = 1,495,189,570,201.08/1,411,938.04
  6. Step 6: Final answer
    x = 1,058,962.59

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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.