Home / 419,531.88-578,935.23-245,118.18

Finding the Fourth Proportional to 419,531.88, 578,935.23 and 245,118.18

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Solution

The fourth proportional to 419,531.88, 578,935.23 and 245,118.18 is: 338,252.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,531.88 : 578,935.23 = 245,118.18 : x
  2. Step 2: Convert to fraction form
    419,531.88/578,935.23 = 245,118.18/x
  3. Step 3: Cross multiply
    419,531.88x = 578,935.23 × 245,118.18
  4. Step 4: Simplify right side
    419,531.88x = 141,907,549,915.48
  5. Step 5: Solve for x
    x = 141,907,549,915.48/419,531.88
  6. Step 6: Final answer
    x = 338,252.13

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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.