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Finding the Fourth Proportional to 719,794.62, 992,860.38 and 547,334.51

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Solution

The fourth proportional to 719,794.62, 992,860.38 and 547,334.51 is: 754,974.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,794.62 : 992,860.38 = 547,334.51 : x
  2. Step 2: Convert to fraction form
    719,794.62/992,860.38 = 547,334.51/x
  3. Step 3: Cross multiply
    719,794.62x = 992,860.38 × 547,334.51
  4. Step 4: Simplify right side
    719,794.62x = 543,426,744,621.41
  5. Step 5: Solve for x
    x = 543,426,744,621.41/719,794.62
  6. Step 6: Final answer
    x = 754,974.72

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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.