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Finding the Fourth Proportional to 463,742.40, 695,224.80 and 242,126.40

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Solution

The fourth proportional to 463,742.40, 695,224.80 and 242,126.40 is: 362,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,742.40 : 695,224.80 = 242,126.40 : x
  2. Step 2: Convert to fraction form
    463,742.40/695,224.80 = 242,126.40/x
  3. Step 3: Cross multiply
    463,742.40x = 695,224.80 × 242,126.40
  4. Step 4: Simplify right side
    463,742.40x = 168,332,278,014.72
  5. Step 5: Solve for x
    x = 168,332,278,014.72/463,742.40
  6. Step 6: Final answer
    x = 362,986.60

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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.