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Finding the Fourth Proportional to 559,447.43, 772,010.60 and 317,698.07

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Solution

The fourth proportional to 559,447.43, 772,010.60 and 317,698.07 is: 438,408.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,447.43 : 772,010.60 = 317,698.07 : x
  2. Step 2: Convert to fraction form
    559,447.43/772,010.60 = 317,698.07/x
  3. Step 3: Cross multiply
    559,447.43x = 772,010.60 × 317,698.07
  4. Step 4: Simplify right side
    559,447.43x = 245,266,272,191.00
  5. Step 5: Solve for x
    x = 245,266,272,191.00/559,447.43
  6. Step 6: Final answer
    x = 438,408.08

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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.