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Finding the Fourth Proportional to 506,066.55, 698,372.51 and 291,202.30

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Solution

The fourth proportional to 506,066.55, 698,372.51 and 291,202.30 is: 401,859.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,066.55 : 698,372.51 = 291,202.30 : x
  2. Step 2: Convert to fraction form
    506,066.55/698,372.51 = 291,202.30/x
  3. Step 3: Cross multiply
    506,066.55x = 698,372.51 × 291,202.30
  4. Step 4: Simplify right side
    506,066.55x = 203,367,681,168.77
  5. Step 5: Solve for x
    x = 203,367,681,168.77/506,066.55
  6. Step 6: Final answer
    x = 401,859.56

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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.