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Finding the Fourth Proportional to 929,541.70, 1,394,312.55 and 929,541.70

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Solution

The fourth proportional to 929,541.70, 1,394,312.55 and 929,541.70 is: 1,394,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,541.70 : 1,394,312.55 = 929,541.70 : x
  2. Step 2: Convert to fraction form
    929,541.70/1,394,312.55 = 929,541.70/x
  3. Step 3: Cross multiply
    929,541.70x = 1,394,312.55 × 929,541.70
  4. Step 4: Simplify right side
    929,541.70x = 1,296,071,658,058.34
  5. Step 5: Solve for x
    x = 1,296,071,658,058.34/929,541.70
  6. Step 6: Final answer
    x = 1,394,312.55

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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.