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Finding the Fourth Proportional to 553,272.20, 829,908.30 and 548,023.40

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Solution

The fourth proportional to 553,272.20, 829,908.30 and 548,023.40 is: 822,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,272.20 : 829,908.30 = 548,023.40 : x
  2. Step 2: Convert to fraction form
    553,272.20/829,908.30 = 548,023.40/x
  3. Step 3: Cross multiply
    553,272.20x = 829,908.30 × 548,023.40
  4. Step 4: Simplify right side
    553,272.20x = 454,809,168,254.22
  5. Step 5: Solve for x
    x = 454,809,168,254.22/553,272.20
  6. Step 6: Final answer
    x = 822,035.10

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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.