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Finding the Fourth Proportional to 1,168,281.90, 1,749,470.40 and 932,085.90

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Solution

The fourth proportional to 1,168,281.90, 1,749,470.40 and 932,085.90 is: 1,395,773.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,281.90 : 1,749,470.40 = 932,085.90 : x
  2. Step 2: Convert to fraction form
    1,168,281.90/1,749,470.40 = 932,085.90/x
  3. Step 3: Cross multiply
    1,168,281.90x = 1,749,470.40 × 932,085.90
  4. Step 4: Simplify right side
    1,168,281.90x = 1,630,656,692,307.36
  5. Step 5: Solve for x
    x = 1,630,656,692,307.36/1,168,281.90
  6. Step 6: Final answer
    x = 1,395,773.31

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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.