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Finding the Fourth Proportional to 559,490.37, 772,098.42 and 317,774.93

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Solution

The fourth proportional to 559,490.37, 772,098.42 and 317,774.93 is: 438,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,490.37 : 772,098.42 = 317,774.93 : x
  2. Step 2: Convert to fraction form
    559,490.37/772,098.42 = 317,774.93/x
  3. Step 3: Cross multiply
    559,490.37x = 772,098.42 × 317,774.93
  4. Step 4: Simplify right side
    559,490.37x = 245,353,517,508.12
  5. Step 5: Solve for x
    x = 245,353,517,508.12/559,490.37
  6. Step 6: Final answer
    x = 438,530.37

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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.