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Finding the Fourth Proportional to 671,097.77, 925,808.64 and 399,010.81

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Solution

The fourth proportional to 671,097.77, 925,808.64 and 399,010.81 is: 550,452.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,097.77 : 925,808.64 = 399,010.81 : x
  2. Step 2: Convert to fraction form
    671,097.77/925,808.64 = 399,010.81/x
  3. Step 3: Cross multiply
    671,097.77x = 925,808.64 × 399,010.81
  4. Step 4: Simplify right side
    671,097.77x = 369,407,655,351.40
  5. Step 5: Solve for x
    x = 369,407,655,351.40/671,097.77
  6. Step 6: Final answer
    x = 550,452.81

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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.