Home / 1,189,143.64-1,640,551.08-679,572.64

Finding the Fourth Proportional to 1,189,143.64, 1,640,551.08 and 679,572.64

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Solution

The fourth proportional to 1,189,143.64, 1,640,551.08 and 679,572.64 is: 937,543.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,143.64 : 1,640,551.08 = 679,572.64 : x
  2. Step 2: Convert to fraction form
    1,189,143.64/1,640,551.08 = 679,572.64/x
  3. Step 3: Cross multiply
    1,189,143.64x = 1,640,551.08 × 679,572.64
  4. Step 4: Simplify right side
    1,189,143.64x = 1,114,873,628,490.45
  5. Step 5: Solve for x
    x = 1,114,873,628,490.45/1,189,143.64
  6. Step 6: Final answer
    x = 937,543.28

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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.