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Finding the Fourth Proportional to 718,995.26, 992,573.00 and 447,150.72

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Solution

The fourth proportional to 718,995.26, 992,573.00 and 447,150.72 is: 617,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,995.26 : 992,573.00 = 447,150.72 : x
  2. Step 2: Convert to fraction form
    718,995.26/992,573.00 = 447,150.72/x
  3. Step 3: Cross multiply
    718,995.26x = 992,573.00 × 447,150.72
  4. Step 4: Simplify right side
    718,995.26x = 443,829,729,366.81
  5. Step 5: Solve for x
    x = 443,829,729,366.81/718,995.26
  6. Step 6: Final answer
    x = 617,291.60

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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.