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Finding the Fourth Proportional to 288,888.20, 433,588.30 and 170,411.40

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Solution

The fourth proportional to 288,888.20, 433,588.30 and 170,411.40 is: 255,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,888.20 : 433,588.30 = 170,411.40 : x
  2. Step 2: Convert to fraction form
    288,888.20/433,588.30 = 170,411.40/x
  3. Step 3: Cross multiply
    288,888.20x = 433,588.30 × 170,411.40
  4. Step 4: Simplify right side
    288,888.20x = 73,888,389,226.62
  5. Step 5: Solve for x
    x = 73,888,389,226.62/288,888.20
  6. Step 6: Final answer
    x = 255,768.11

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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.