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Finding the Fourth Proportional to 288,570.40, 432,855.60 and 182,282.20

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Solution

The fourth proportional to 288,570.40, 432,855.60 and 182,282.20 is: 273,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,570.40 : 432,855.60 = 182,282.20 : x
  2. Step 2: Convert to fraction form
    288,570.40/432,855.60 = 182,282.20/x
  3. Step 3: Cross multiply
    288,570.40x = 432,855.60 × 182,282.20
  4. Step 4: Simplify right side
    288,570.40x = 78,901,871,050.32
  5. Step 5: Solve for x
    x = 78,901,871,050.32/288,570.40
  6. Step 6: Final answer
    x = 273,423.30

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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.