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Finding the Fourth Proportional to 922,703.20, 1,384,249.20 and 291,680.80

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Solution

The fourth proportional to 922,703.20, 1,384,249.20 and 291,680.80 is: 437,582.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,703.20 : 1,384,249.20 = 291,680.80 : x
  2. Step 2: Convert to fraction form
    922,703.20/1,384,249.20 = 291,680.80/x
  3. Step 3: Cross multiply
    922,703.20x = 1,384,249.20 × 291,680.80
  4. Step 4: Simplify right side
    922,703.20x = 403,758,914,055.36
  5. Step 5: Solve for x
    x = 403,758,914,055.36/922,703.20
  6. Step 6: Final answer
    x = 437,582.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.