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Finding the Fourth Proportional to 611,501.80, 917,252.70 and 548,516.20

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Solution

The fourth proportional to 611,501.80, 917,252.70 and 548,516.20 is: 822,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,501.80 : 917,252.70 = 548,516.20 : x
  2. Step 2: Convert to fraction form
    611,501.80/917,252.70 = 548,516.20/x
  3. Step 3: Cross multiply
    611,501.80x = 917,252.70 × 548,516.20
  4. Step 4: Simplify right side
    611,501.80x = 503,127,965,443.74
  5. Step 5: Solve for x
    x = 503,127,965,443.74/611,501.80
  6. Step 6: Final answer
    x = 822,774.30

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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.