Home / 821,436.17-1,133,584.36-453,905.35

Finding the Fourth Proportional to 821,436.17, 1,133,584.36 and 453,905.35

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Solution

The fourth proportional to 821,436.17, 1,133,584.36 and 453,905.35 is: 626,390.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,436.17 : 1,133,584.36 = 453,905.35 : x
  2. Step 2: Convert to fraction form
    821,436.17/1,133,584.36 = 453,905.35/x
  3. Step 3: Cross multiply
    821,436.17x = 1,133,584.36 × 453,905.35
  4. Step 4: Simplify right side
    821,436.17x = 514,540,001,711.60
  5. Step 5: Solve for x
    x = 514,540,001,711.60/821,436.17
  6. Step 6: Final answer
    x = 626,390.73

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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.