Home / 1,149,725.51-1,586,670.24-640,428.11

Finding the Fourth Proportional to 1,149,725.51, 1,586,670.24 and 640,428.11

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Solution

The fourth proportional to 1,149,725.51, 1,586,670.24 and 640,428.11 is: 883,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,725.51 : 1,586,670.24 = 640,428.11 : x
  2. Step 2: Convert to fraction form
    1,149,725.51/1,586,670.24 = 640,428.11/x
  3. Step 3: Cross multiply
    1,149,725.51x = 1,586,670.24 × 640,428.11
  4. Step 4: Simplify right side
    1,149,725.51x = 1,016,148,211,860.95
  5. Step 5: Solve for x
    x = 1,016,148,211,860.95/1,149,725.51
  6. Step 6: Final answer
    x = 883,818.10

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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.