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Finding the Fourth Proportional to 922,778.40, 1,384,167.60 and 543,309.60

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Solution

The fourth proportional to 922,778.40, 1,384,167.60 and 543,309.60 is: 814,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,778.40 : 1,384,167.60 = 543,309.60 : x
  2. Step 2: Convert to fraction form
    922,778.40/1,384,167.60 = 543,309.60/x
  3. Step 3: Cross multiply
    922,778.40x = 1,384,167.60 × 543,309.60
  4. Step 4: Simplify right side
    922,778.40x = 752,031,545,088.96
  5. Step 5: Solve for x
    x = 752,031,545,088.96/922,778.40
  6. Step 6: Final answer
    x = 814,964.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.