Home / 1,188,834.50-1,640,591.45-679,547.82

Finding the Fourth Proportional to 1,188,834.50, 1,640,591.45 and 679,547.82

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Solution

The fourth proportional to 1,188,834.50, 1,640,591.45 and 679,547.82 is: 937,775.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,834.50 : 1,640,591.45 = 679,547.82 : x
  2. Step 2: Convert to fraction form
    1,188,834.50/1,640,591.45 = 679,547.82/x
  3. Step 3: Cross multiply
    1,188,834.50x = 1,640,591.45 × 679,547.82
  4. Step 4: Simplify right side
    1,188,834.50x = 1,114,860,343,358.14
  5. Step 5: Solve for x
    x = 1,114,860,343,358.14/1,188,834.50
  6. Step 6: Final answer
    x = 937,775.90

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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.