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Finding the Fourth Proportional to 575,081.06, 793,657.49 and 317,003.90

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Solution

The fourth proportional to 575,081.06, 793,657.49 and 317,003.90 is: 437,490.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,081.06 : 793,657.49 = 317,003.90 : x
  2. Step 2: Convert to fraction form
    575,081.06/793,657.49 = 317,003.90/x
  3. Step 3: Cross multiply
    575,081.06x = 793,657.49 × 317,003.90
  4. Step 4: Simplify right side
    575,081.06x = 251,592,514,040.90
  5. Step 5: Solve for x
    x = 251,592,514,040.90/575,081.06
  6. Step 6: Final answer
    x = 437,490.53

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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.