Home / 1,181,285.76-1,630,329.80-665,140.23

Finding the Fourth Proportional to 1,181,285.76, 1,630,329.80 and 665,140.23

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Solution

The fourth proportional to 1,181,285.76, 1,630,329.80 and 665,140.23 is: 917,981.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,285.76 : 1,630,329.80 = 665,140.23 : x
  2. Step 2: Convert to fraction form
    1,181,285.76/1,630,329.80 = 665,140.23/x
  3. Step 3: Cross multiply
    1,181,285.76x = 1,630,329.80 × 665,140.23
  4. Step 4: Simplify right side
    1,181,285.76x = 1,084,397,929,996.21
  5. Step 5: Solve for x
    x = 1,084,397,929,996.21/1,181,285.76
  6. Step 6: Final answer
    x = 917,981.04

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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.