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Finding the Fourth Proportional to 528,373.50, 729,224.10 and 295,888.95

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Solution

The fourth proportional to 528,373.50, 729,224.10 and 295,888.95 is: 408,365.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,373.50 : 729,224.10 = 295,888.95 : x
  2. Step 2: Convert to fraction form
    528,373.50/729,224.10 = 295,888.95/x
  3. Step 3: Cross multiply
    528,373.50x = 729,224.10 × 295,888.95
  4. Step 4: Simplify right side
    528,373.50x = 215,769,349,617.58
  5. Step 5: Solve for x
    x = 215,769,349,617.58/528,373.50
  6. Step 6: Final answer
    x = 408,365.20

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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.