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Finding the Fourth Proportional to 587,810.12, 811,187.34 and 333,155.84

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Solution

The fourth proportional to 587,810.12, 811,187.34 and 333,155.84 is: 459,760.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,810.12 : 811,187.34 = 333,155.84 : x
  2. Step 2: Convert to fraction form
    587,810.12/811,187.34 = 333,155.84/x
  3. Step 3: Cross multiply
    587,810.12x = 811,187.34 × 333,155.84
  4. Step 4: Simplify right side
    587,810.12x = 270,251,799,655.07
  5. Step 5: Solve for x
    x = 270,251,799,655.07/587,810.12
  6. Step 6: Final answer
    x = 459,760.37

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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.