Home / 403,240.80-556,436.16-233,486.40

Finding the Fourth Proportional to 403,240.80, 556,436.16 and 233,486.40

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Solution

The fourth proportional to 403,240.80, 556,436.16 and 233,486.40 is: 322,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,240.80 : 556,436.16 = 233,486.40 : x
  2. Step 2: Convert to fraction form
    403,240.80/556,436.16 = 233,486.40/x
  3. Step 3: Cross multiply
    403,240.80x = 556,436.16 × 233,486.40
  4. Step 4: Simplify right side
    403,240.80x = 129,920,275,828.22
  5. Step 5: Solve for x
    x = 129,920,275,828.22/403,240.80
  6. Step 6: Final answer
    x = 322,190.30

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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.