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Finding the Fourth Proportional to 524,853.20, 786,742.20 and 258,203.60

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Solution

The fourth proportional to 524,853.20, 786,742.20 and 258,203.60 is: 387,040.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,853.20 : 786,742.20 = 258,203.60 : x
  2. Step 2: Convert to fraction form
    524,853.20/786,742.20 = 258,203.60/x
  3. Step 3: Cross multiply
    524,853.20x = 786,742.20 × 258,203.60
  4. Step 4: Simplify right side
    524,853.20x = 203,139,668,311.92
  5. Step 5: Solve for x
    x = 203,139,668,311.92/524,853.20
  6. Step 6: Final answer
    x = 387,040.93

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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.