Home / 869,543.77-1,199,970.44-487,570.59

Finding the Fourth Proportional to 869,543.77, 1,199,970.44 and 487,570.59

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Solution

The fourth proportional to 869,543.77, 1,199,970.44 and 487,570.59 is: 672,847.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,543.77 : 1,199,970.44 = 487,570.59 : x
  2. Step 2: Convert to fraction form
    869,543.77/1,199,970.44 = 487,570.59/x
  3. Step 3: Cross multiply
    869,543.77x = 1,199,970.44 × 487,570.59
  4. Step 4: Simplify right side
    869,543.77x = 585,070,295,413.36
  5. Step 5: Solve for x
    x = 585,070,295,413.36/869,543.77
  6. Step 6: Final answer
    x = 672,847.44

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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.