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Finding the Fourth Proportional to 671,133.78, 926,152.65 and 365,199.75

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Solution

The fourth proportional to 671,133.78, 926,152.65 and 365,199.75 is: 503,969.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,133.78 : 926,152.65 = 365,199.75 : x
  2. Step 2: Convert to fraction form
    671,133.78/926,152.65 = 365,199.75/x
  3. Step 3: Cross multiply
    671,133.78x = 926,152.65 × 365,199.75
  4. Step 4: Simplify right side
    671,133.78x = 338,230,716,241.84
  5. Step 5: Solve for x
    x = 338,230,716,241.84/671,133.78
  6. Step 6: Final answer
    x = 503,969.14

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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.