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Finding the Fourth Proportional to 704,905.95, 972,743.99 and 382,609.11

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Solution

The fourth proportional to 704,905.95, 972,743.99 and 382,609.11 is: 527,986.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,905.95 : 972,743.99 = 382,609.11 : x
  2. Step 2: Convert to fraction form
    704,905.95/972,743.99 = 382,609.11/x
  3. Step 3: Cross multiply
    704,905.95x = 972,743.99 × 382,609.11
  4. Step 4: Simplify right side
    704,905.95x = 372,180,710,358.70
  5. Step 5: Solve for x
    x = 372,180,710,358.70/704,905.95
  6. Step 6: Final answer
    x = 527,986.34

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1.5x scale

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.