Home / 821,435.41-1,133,583.32-453,904.59

Finding the Fourth Proportional to 821,435.41, 1,133,583.32 and 453,904.59

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Solution

The fourth proportional to 821,435.41, 1,133,583.32 and 453,904.59 is: 626,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,435.41 : 1,133,583.32 = 453,904.59 : x
  2. Step 2: Convert to fraction form
    821,435.41/1,133,583.32 = 453,904.59/x
  3. Step 3: Cross multiply
    821,435.41x = 1,133,583.32 × 453,904.59
  4. Step 4: Simplify right side
    821,435.41x = 514,538,677,481.14
  5. Step 5: Solve for x
    x = 514,538,677,481.14/821,435.41
  6. Step 6: Final answer
    x = 626,389.70

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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.