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Finding the Fourth Proportional to 504,526.40, 696,243 and 278,171.90

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Solution

The fourth proportional to 504,526.40, 696,243 and 278,171.90 is: 383,875.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,526.40 : 696,243 = 278,171.90 : x
  2. Step 2: Convert to fraction form
    504,526.40/696,243 = 278,171.90/x
  3. Step 3: Cross multiply
    504,526.40x = 696,243 × 278,171.90
  4. Step 4: Simplify right side
    504,526.40x = 193,675,238,171.70
  5. Step 5: Solve for x
    x = 193,675,238,171.70/504,526.40
  6. Step 6: Final answer
    x = 383,875.33

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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.