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Finding the Fourth Proportional to 718,994.76, 992,572.31 and 447,150.22

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Solution

The fourth proportional to 718,994.76, 992,572.31 and 447,150.22 is: 617,290.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,994.76 : 992,572.31 = 447,150.22 : x
  2. Step 2: Convert to fraction form
    718,994.76/992,572.31 = 447,150.22/x
  3. Step 3: Cross multiply
    718,994.76x = 992,572.31 × 447,150.22
  4. Step 4: Simplify right side
    718,994.76x = 443,828,926,782.41
  5. Step 5: Solve for x
    x = 443,828,926,782.41/718,994.76
  6. Step 6: Final answer
    x = 617,290.91

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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.