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Finding the Fourth Proportional to 704,877.50, 972,704.85 and 382,580.67

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Solution

The fourth proportional to 704,877.50, 972,704.85 and 382,580.67 is: 527,947.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,877.50 : 972,704.85 = 382,580.67 : x
  2. Step 2: Convert to fraction form
    704,877.50/972,704.85 = 382,580.67/x
  3. Step 3: Cross multiply
    704,877.50x = 972,704.85 × 382,580.67
  4. Step 4: Simplify right side
    704,877.50x = 372,138,073,225.25
  5. Step 5: Solve for x
    x = 372,138,073,225.25/704,877.50
  6. Step 6: Final answer
    x = 527,947.16

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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.