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Finding the Fourth Proportional to 719,057.49, 992,658.59 and 447,213.02

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Solution

The fourth proportional to 719,057.49, 992,658.59 and 447,213.02 is: 617,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,057.49 : 992,658.59 = 447,213.02 : x
  2. Step 2: Convert to fraction form
    719,057.49/992,658.59 = 447,213.02/x
  3. Step 3: Cross multiply
    719,057.49x = 992,658.59 × 447,213.02
  4. Step 4: Simplify right side
    719,057.49x = 443,929,845,862.84
  5. Step 5: Solve for x
    x = 443,929,845,862.84/719,057.49
  6. Step 6: Final answer
    x = 617,377.40

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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.