Home / 821,861.32-1,133,434.38-515,966.24

Finding the Fourth Proportional to 821,861.32, 1,133,434.38 and 515,966.24

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Solution

The fourth proportional to 821,861.32, 1,133,434.38 and 515,966.24 is: 711,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,861.32 : 1,133,434.38 = 515,966.24 : x
  2. Step 2: Convert to fraction form
    821,861.32/1,133,434.38 = 515,966.24/x
  3. Step 3: Cross multiply
    821,861.32x = 1,133,434.38 × 515,966.24
  4. Step 4: Simplify right side
    821,861.32x = 584,813,875,335.33
  5. Step 5: Solve for x
    x = 584,813,875,335.33/821,861.32
  6. Step 6: Final answer
    x = 711,572.45

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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.