Home / 1,149,440.50-1,586,277.09-640,142.88

Finding the Fourth Proportional to 1,149,440.50, 1,586,277.09 and 640,142.88

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Solution

The fourth proportional to 1,149,440.50, 1,586,277.09 and 640,142.88 is: 883,424.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,440.50 : 1,586,277.09 = 640,142.88 : x
  2. Step 2: Convert to fraction form
    1,149,440.50/1,586,277.09 = 640,142.88/x
  3. Step 3: Cross multiply
    1,149,440.50x = 1,586,277.09 × 640,142.88
  4. Step 4: Simplify right side
    1,149,440.50x = 1,015,443,984,870.62
  5. Step 5: Solve for x
    x = 1,015,443,984,870.62/1,149,440.50
  6. Step 6: Final answer
    x = 883,424.57

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1.5x scale

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.