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Finding the Fourth Proportional to 656,907.78, 985,808.78 and 236,226.18

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Solution

The fourth proportional to 656,907.78, 985,808.78 and 236,226.18 is: 354,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,907.78 : 985,808.78 = 236,226.18 : x
  2. Step 2: Convert to fraction form
    656,907.78/985,808.78 = 236,226.18/x
  3. Step 3: Cross multiply
    656,907.78x = 985,808.78 × 236,226.18
  4. Step 4: Simplify right side
    656,907.78x = 232,873,842,309.86
  5. Step 5: Solve for x
    x = 232,873,842,309.86/656,907.78
  6. Step 6: Final answer
    x = 354,500.05

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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.