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Finding the Fourth Proportional to 554,218.61, 764,821.04 and 299,570.00

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Solution

The fourth proportional to 554,218.61, 764,821.04 and 299,570.00 is: 413,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,218.61 : 764,821.04 = 299,570.00 : x
  2. Step 2: Convert to fraction form
    554,218.61/764,821.04 = 299,570.00/x
  3. Step 3: Cross multiply
    554,218.61x = 764,821.04 × 299,570.00
  4. Step 4: Simplify right side
    554,218.61x = 229,117,433,630.85
  5. Step 5: Solve for x
    x = 229,117,433,630.85/554,218.61
  6. Step 6: Final answer
    x = 413,406.25

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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.