Home / 403,504.61-556,815.03-231,413.69

Finding the Fourth Proportional to 403,504.61, 556,815.03 and 231,413.69

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Solution

The fourth proportional to 403,504.61, 556,815.03 and 231,413.69 is: 319,338.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,504.61 : 556,815.03 = 231,413.69 : x
  2. Step 2: Convert to fraction form
    403,504.61/556,815.03 = 231,413.69/x
  3. Step 3: Cross multiply
    403,504.61x = 556,815.03 × 231,413.69
  4. Step 4: Simplify right side
    403,504.61x = 128,854,621,264.00
  5. Step 5: Solve for x
    x = 128,854,621,264.00/403,504.61
  6. Step 6: Final answer
    x = 319,338.66

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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.