Home / 1,188,830.14-1,640,585.40-679,543.45

Finding the Fourth Proportional to 1,188,830.14, 1,640,585.40 and 679,543.45

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Solution

The fourth proportional to 1,188,830.14, 1,640,585.40 and 679,543.45 is: 937,769.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,830.14 : 1,640,585.40 = 679,543.45 : x
  2. Step 2: Convert to fraction form
    1,188,830.14/1,640,585.40 = 679,543.45/x
  3. Step 3: Cross multiply
    1,188,830.14x = 1,640,585.40 × 679,543.45
  4. Step 4: Simplify right side
    1,188,830.14x = 1,114,849,062,735.63
  5. Step 5: Solve for x
    x = 1,114,849,062,735.63/1,188,830.14
  6. Step 6: Final answer
    x = 937,769.85

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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.