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Finding the Fourth Proportional to 704,970.48, 972,859.80 and 382,680.48

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Solution

The fourth proportional to 704,970.48, 972,859.80 and 382,680.48 is: 528,099.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,970.48 : 972,859.80 = 382,680.48 : x
  2. Step 2: Convert to fraction form
    704,970.48/972,859.80 = 382,680.48/x
  3. Step 3: Cross multiply
    704,970.48x = 972,859.80 × 382,680.48
  4. Step 4: Simplify right side
    704,970.48x = 372,294,455,236.70
  5. Step 5: Solve for x
    x = 372,294,455,236.70/704,970.48
  6. Step 6: Final answer
    x = 528,099.35

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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.