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Finding the Fourth Proportional to 574,205.18, 792,386.62 and 319,550.90

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Solution

The fourth proportional to 574,205.18, 792,386.62 and 319,550.90 is: 440,971.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,205.18 : 792,386.62 = 319,550.90 : x
  2. Step 2: Convert to fraction form
    574,205.18/792,386.62 = 319,550.90/x
  3. Step 3: Cross multiply
    574,205.18x = 792,386.62 × 319,550.90
  4. Step 4: Simplify right side
    574,205.18x = 253,207,852,808.15
  5. Step 5: Solve for x
    x = 253,207,852,808.15/574,205.18
  6. Step 6: Final answer
    x = 440,971.04

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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.