Home / 821,901.59-1,232,987.32-253,282.79

Finding the Fourth Proportional to 821,901.59, 1,232,987.32 and 253,282.79

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Solution

The fourth proportional to 821,901.59, 1,232,987.32 and 253,282.79 is: 379,965.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,901.59 : 1,232,987.32 = 253,282.79 : x
  2. Step 2: Convert to fraction form
    821,901.59/1,232,987.32 = 253,282.79/x
  3. Step 3: Cross multiply
    821,901.59x = 1,232,987.32 × 253,282.79
  4. Step 4: Simplify right side
    821,901.59x = 312,294,468,444.22
  5. Step 5: Solve for x
    x = 312,294,468,444.22/821,901.59
  6. Step 6: Final answer
    x = 379,965.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.