Home / 821,863.32-1,133,437.14-515,968.24

Finding the Fourth Proportional to 821,863.32, 1,133,437.14 and 515,968.24

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Solution

The fourth proportional to 821,863.32, 1,133,437.14 and 515,968.24 is: 711,575.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,863.32 : 1,133,437.14 = 515,968.24 : x
  2. Step 2: Convert to fraction form
    821,863.32/1,133,437.14 = 515,968.24/x
  3. Step 3: Cross multiply
    821,863.32x = 1,133,437.14 × 515,968.24
  4. Step 4: Simplify right side
    821,863.32x = 584,817,566,276.43
  5. Step 5: Solve for x
    x = 584,817,566,276.43/821,863.32
  6. Step 6: Final answer
    x = 711,575.21

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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.