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Finding the Fourth Proportional to 704,858.70, 972,678.98 and 382,561.88

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Solution

The fourth proportional to 704,858.70, 972,678.98 and 382,561.88 is: 527,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,858.70 : 972,678.98 = 382,561.88 : x
  2. Step 2: Convert to fraction form
    704,858.70/972,678.98 = 382,561.88/x
  3. Step 3: Cross multiply
    704,858.70x = 972,678.98 × 382,561.88
  4. Step 4: Simplify right side
    704,858.70x = 372,109,892,449.08
  5. Step 5: Solve for x
    x = 372,109,892,449.08/704,858.70
  6. Step 6: Final answer
    x = 527,921.26

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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.