Home / 1,680,610.40-2,319,438.40-955,566.72

Finding the Fourth Proportional to 1,680,610.40, 2,319,438.40 and 955,566.72

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Solution

The fourth proportional to 1,680,610.40, 2,319,438.40 and 955,566.72 is: 1,318,793.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,610.40 : 2,319,438.40 = 955,566.72 : x
  2. Step 2: Convert to fraction form
    1,680,610.40/2,319,438.40 = 955,566.72/x
  3. Step 3: Cross multiply
    1,680,610.40x = 2,319,438.40 × 955,566.72
  4. Step 4: Simplify right side
    1,680,610.40x = 2,216,378,144,130.05
  5. Step 5: Solve for x
    x = 2,216,378,144,130.05/1,680,610.40
  6. Step 6: Final answer
    x = 1,318,793.54

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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.