Home / 819,321.24-1,130,730.66-451,870.26

Finding the Fourth Proportional to 819,321.24, 1,130,730.66 and 451,870.26

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Solution

The fourth proportional to 819,321.24, 1,130,730.66 and 451,870.26 is: 623,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,321.24 : 1,130,730.66 = 451,870.26 : x
  2. Step 2: Convert to fraction form
    819,321.24/1,130,730.66 = 451,870.26/x
  3. Step 3: Cross multiply
    819,321.24x = 1,130,730.66 × 451,870.26
  4. Step 4: Simplify right side
    819,321.24x = 510,943,557,324.17
  5. Step 5: Solve for x
    x = 510,943,557,324.17/819,321.24
  6. Step 6: Final answer
    x = 623,618.10

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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.