Home / 812,177,401.44-1,120,818,444.12-440,899,432.68

Finding the Fourth Proportional to 812,177,401.44, 1,120,818,444.12 and 440,899,432.68

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Solution

The fourth proportional to 812,177,401.44, 1,120,818,444.12 and 440,899,432.68 is: 608,448,616.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,177,401.44 : 1,120,818,444.12 = 440,899,432.68 : x
  2. Step 2: Convert to fraction form
    812,177,401.44/1,120,818,444.12 = 440,899,432.68/x
  3. Step 3: Cross multiply
    812,177,401.44x = 1,120,818,444.12 × 440,899,432.68
  4. Step 4: Simplify right side
    812,177,401.44x = 494,168,216,149,788,224
  5. Step 5: Solve for x
    x = 494,168,216,149,788,224/812,177,401.44
  6. Step 6: Final answer
    x = 608,448,616.37

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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.