Home / 979,384.61-1,351,553.36-543,802.76

Finding the Fourth Proportional to 979,384.61, 1,351,553.36 and 543,802.76

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Solution

The fourth proportional to 979,384.61, 1,351,553.36 and 543,802.76 is: 750,449.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,384.61 : 1,351,553.36 = 543,802.76 : x
  2. Step 2: Convert to fraction form
    979,384.61/1,351,553.36 = 543,802.76/x
  3. Step 3: Cross multiply
    979,384.61x = 1,351,553.36 × 543,802.76
  4. Step 4: Simplify right side
    979,384.61x = 734,978,452,193.66
  5. Step 5: Solve for x
    x = 734,978,452,193.66/979,384.61
  6. Step 6: Final answer
    x = 750,449.25

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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.