Home / 836,420.09-1,154,264.51-454,450.01

Finding the Fourth Proportional to 836,420.09, 1,154,264.51 and 454,450.01

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Solution

The fourth proportional to 836,420.09, 1,154,264.51 and 454,450.01 is: 627,143.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,420.09 : 1,154,264.51 = 454,450.01 : x
  2. Step 2: Convert to fraction form
    836,420.09/1,154,264.51 = 454,450.01/x
  3. Step 3: Cross multiply
    836,420.09x = 1,154,264.51 × 454,450.01
  4. Step 4: Simplify right side
    836,420.09x = 524,555,513,476.95
  5. Step 5: Solve for x
    x = 524,555,513,476.95/836,420.09
  6. Step 6: Final answer
    x = 627,143.61

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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.