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Finding the Fourth Proportional to 873,661.51, 1,206,024.87 and 587,347.71

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Solution

The fourth proportional to 873,661.51, 1,206,024.87 and 587,347.71 is: 810,789.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,661.51 : 1,206,024.87 = 587,347.71 : x
  2. Step 2: Convert to fraction form
    873,661.51/1,206,024.87 = 587,347.71/x
  3. Step 3: Cross multiply
    873,661.51x = 1,206,024.87 × 587,347.71
  4. Step 4: Simplify right side
    873,661.51x = 708,355,939,567.42
  5. Step 5: Solve for x
    x = 708,355,939,567.42/873,661.51
  6. Step 6: Final answer
    x = 810,789.91

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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.