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Finding the Fourth Proportional to 704,728.13, 972,525.44 and 382,438.22

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Solution

The fourth proportional to 704,728.13, 972,525.44 and 382,438.22 is: 527,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,728.13 : 972,525.44 = 382,438.22 : x
  2. Step 2: Convert to fraction form
    704,728.13/972,525.44 = 382,438.22/x
  3. Step 3: Cross multiply
    704,728.13x = 972,525.44 × 382,438.22
  4. Step 4: Simplify right side
    704,728.13x = 371,930,898,178.32
  5. Step 5: Solve for x
    x = 371,930,898,178.32/704,728.13
  6. Step 6: Final answer
    x = 527,765.08

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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.