Home / 825,479.36-1,138,678.88-519,070.80

Finding the Fourth Proportional to 825,479.36, 1,138,678.88 and 519,070.80

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Solution

The fourth proportional to 825,479.36, 1,138,678.88 and 519,070.80 is: 716,014.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,479.36 : 1,138,678.88 = 519,070.80 : x
  2. Step 2: Convert to fraction form
    825,479.36/1,138,678.88 = 519,070.80/x
  3. Step 3: Cross multiply
    825,479.36x = 1,138,678.88 × 519,070.80
  4. Step 4: Simplify right side
    825,479.36x = 591,054,957,184.70
  5. Step 5: Solve for x
    x = 591,054,957,184.70/825,479.36
  6. Step 6: Final answer
    x = 716,014.22

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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.