Home / 1,761,657.20-2,641,319.40-639,580.40

Finding the Fourth Proportional to 1,761,657.20, 2,641,319.40 and 639,580.40

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Solution

The fourth proportional to 1,761,657.20, 2,641,319.40 and 639,580.40 is: 958,947.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,657.20 : 2,641,319.40 = 639,580.40 : x
  2. Step 2: Convert to fraction form
    1,761,657.20/2,641,319.40 = 639,580.40/x
  3. Step 3: Cross multiply
    1,761,657.20x = 2,641,319.40 × 639,580.40
  4. Step 4: Simplify right side
    1,761,657.20x = 1,689,336,118,379.76
  5. Step 5: Solve for x
    x = 1,689,336,118,379.76/1,761,657.20
  6. Step 6: Final answer
    x = 958,947.13

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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.