Home / 1,189,511.67-1,641,482.17-645,635.90

Finding the Fourth Proportional to 1,189,511.67, 1,641,482.17 and 645,635.90

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Solution

The fourth proportional to 1,189,511.67, 1,641,482.17 and 645,635.90 is: 890,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,511.67 : 1,641,482.17 = 645,635.90 : x
  2. Step 2: Convert to fraction form
    1,189,511.67/1,641,482.17 = 645,635.90/x
  3. Step 3: Cross multiply
    1,189,511.67x = 1,641,482.17 × 645,635.90
  4. Step 4: Simplify right side
    1,189,511.67x = 1,059,799,818,161.90
  5. Step 5: Solve for x
    x = 1,059,799,818,161.90/1,189,511.67
  6. Step 6: Final answer
    x = 890,953.70

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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.