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Finding the Fourth Proportional to 719,011.68, 992,595.62 and 447,167.12

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Solution

The fourth proportional to 719,011.68, 992,595.62 and 447,167.12 is: 617,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,011.68 : 992,595.62 = 447,167.12 : x
  2. Step 2: Convert to fraction form
    719,011.68/992,595.62 = 447,167.12/x
  3. Step 3: Cross multiply
    719,011.68x = 992,595.62 × 447,167.12
  4. Step 4: Simplify right side
    719,011.68x = 443,856,124,720.01
  5. Step 5: Solve for x
    x = 443,856,124,720.01/719,011.68
  6. Step 6: Final answer
    x = 617,314.21

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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.