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Finding the Fourth Proportional to 290,526.84, 400,000.14 and 247,914.36

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Solution

The fourth proportional to 290,526.84, 400,000.14 and 247,914.36 is: 341,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,526.84 : 400,000.14 = 247,914.36 : x
  2. Step 2: Convert to fraction form
    290,526.84/400,000.14 = 247,914.36/x
  3. Step 3: Cross multiply
    290,526.84x = 400,000.14 × 247,914.36
  4. Step 4: Simplify right side
    290,526.84x = 99,165,778,708.01
  5. Step 5: Solve for x
    x = 99,165,778,708.01/290,526.84
  6. Step 6: Final answer
    x = 341,330.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.