Home / 1,149,440.20-1,586,420.50-666,307.56

Finding the Fourth Proportional to 1,149,440.20, 1,586,420.50 and 666,307.56

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Solution

The fourth proportional to 1,149,440.20, 1,586,420.50 and 666,307.56 is: 919,616.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,440.20 : 1,586,420.50 = 666,307.56 : x
  2. Step 2: Convert to fraction form
    1,149,440.20/1,586,420.50 = 666,307.56/x
  3. Step 3: Cross multiply
    1,149,440.20x = 1,586,420.50 × 666,307.56
  4. Step 4: Simplify right side
    1,149,440.20x = 1,057,043,972,488.98
  5. Step 5: Solve for x
    x = 1,057,043,972,488.98/1,149,440.20
  6. Step 6: Final answer
    x = 919,616.32

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Double scale
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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.