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Finding the Fourth Proportional to 618,784.99, 852,326.05 and 437,181.68

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Solution

The fourth proportional to 618,784.99, 852,326.05 and 437,181.68 is: 602,182.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,784.99 : 852,326.05 = 437,181.68 : x
  2. Step 2: Convert to fraction form
    618,784.99/852,326.05 = 437,181.68/x
  3. Step 3: Cross multiply
    618,784.99x = 852,326.05 × 437,181.68
  4. Step 4: Simplify right side
    618,784.99x = 372,621,334,446.76
  5. Step 5: Solve for x
    x = 372,621,334,446.76/618,784.99
  6. Step 6: Final answer
    x = 602,182.24

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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.