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Finding the Fourth Proportional to 548,632.80, 822,949.20 and 545,133.60

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Solution

The fourth proportional to 548,632.80, 822,949.20 and 545,133.60 is: 817,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,632.80 : 822,949.20 = 545,133.60 : x
  2. Step 2: Convert to fraction form
    548,632.80/822,949.20 = 545,133.60/x
  3. Step 3: Cross multiply
    548,632.80x = 822,949.20 × 545,133.60
  4. Step 4: Simplify right side
    548,632.80x = 448,617,260,013.12
  5. Step 5: Solve for x
    x = 448,617,260,013.12/548,632.80
  6. Step 6: Final answer
    x = 817,700.40

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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.