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Finding the Fourth Proportional to 586,040.50, 808,736.25 and 317,768.50

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Solution

The fourth proportional to 586,040.50, 808,736.25 and 317,768.50 is: 438,520.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,040.50 : 808,736.25 = 317,768.50 : x
  2. Step 2: Convert to fraction form
    586,040.50/808,736.25 = 317,768.50/x
  3. Step 3: Cross multiply
    586,040.50x = 808,736.25 × 317,768.50
  4. Step 4: Simplify right side
    586,040.50x = 256,990,905,058.13
  5. Step 5: Solve for x
    x = 256,990,905,058.13/586,040.50
  6. Step 6: Final answer
    x = 438,520.73

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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.