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Finding the Fourth Proportional to 559,658.99, 772,332.01 and 317,954.82

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Solution

The fourth proportional to 559,658.99, 772,332.01 and 317,954.82 is: 438,779.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,658.99 : 772,332.01 = 317,954.82 : x
  2. Step 2: Convert to fraction form
    559,658.99/772,332.01 = 317,954.82/x
  3. Step 3: Cross multiply
    559,658.99x = 772,332.01 × 317,954.82
  4. Step 4: Simplify right side
    559,658.99x = 245,566,687,321.15
  5. Step 5: Solve for x
    x = 245,566,687,321.15/559,658.99
  6. Step 6: Final answer
    x = 438,779.13

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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.