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Finding the Fourth Proportional to 559,783.44, 772,473.24 and 318,034.08

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Solution

The fourth proportional to 559,783.44, 772,473.24 and 318,034.08 is: 438,871.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,783.44 : 772,473.24 = 318,034.08 : x
  2. Step 2: Convert to fraction form
    559,783.44/772,473.24 = 318,034.08/x
  3. Step 3: Cross multiply
    559,783.44x = 772,473.24 × 318,034.08
  4. Step 4: Simplify right side
    559,783.44x = 245,672,816,208.02
  5. Step 5: Solve for x
    x = 245,672,816,208.02/559,783.44
  6. Step 6: Final answer
    x = 438,871.18

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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.