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Finding the Fourth Proportional to 504,777.72, 696,568.14 and 278,417.40

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Solution

The fourth proportional to 504,777.72, 696,568.14 and 278,417.40 is: 384,202.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,777.72 : 696,568.14 = 278,417.40 : x
  2. Step 2: Convert to fraction form
    504,777.72/696,568.14 = 278,417.40/x
  3. Step 3: Cross multiply
    504,777.72x = 696,568.14 × 278,417.40
  4. Step 4: Simplify right side
    504,777.72x = 193,936,690,461.64
  5. Step 5: Solve for x
    x = 193,936,690,461.64/504,777.72
  6. Step 6: Final answer
    x = 384,202.16

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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.