Home / 1,178,909.31-1,626,894.87-642,365.31

Finding the Fourth Proportional to 1,178,909.31, 1,626,894.87 and 642,365.31

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Solution

The fourth proportional to 1,178,909.31, 1,626,894.87 and 642,365.31 is: 886,464.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,909.31 : 1,626,894.87 = 642,365.31 : x
  2. Step 2: Convert to fraction form
    1,178,909.31/1,626,894.87 = 642,365.31/x
  3. Step 3: Cross multiply
    1,178,909.31x = 1,626,894.87 × 642,365.31
  4. Step 4: Simplify right side
    1,178,909.31x = 1,045,060,827,504.96
  5. Step 5: Solve for x
    x = 1,045,060,827,504.96/1,178,909.31
  6. Step 6: Final answer
    x = 886,464.14

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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.