Home / 819,153.29-1,130,439.03-451,643.61

Finding the Fourth Proportional to 819,153.29, 1,130,439.03 and 451,643.61

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Solution

The fourth proportional to 819,153.29, 1,130,439.03 and 451,643.61 is: 623,272.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,153.29 : 1,130,439.03 = 451,643.61 : x
  2. Step 2: Convert to fraction form
    819,153.29/1,130,439.03 = 451,643.61/x
  3. Step 3: Cross multiply
    819,153.29x = 1,130,439.03 × 451,643.61
  4. Step 4: Simplify right side
    819,153.29x = 510,555,569,480.08
  5. Step 5: Solve for x
    x = 510,555,569,480.08/819,153.29
  6. Step 6: Final answer
    x = 623,272.32

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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.