Home / 382,319.16-527,628.06-212,578.80

Finding the Fourth Proportional to 382,319.16, 527,628.06 and 212,578.80

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Solution

The fourth proportional to 382,319.16, 527,628.06 and 212,578.80 is: 293,374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,319.16 : 527,628.06 = 212,578.80 : x
  2. Step 2: Convert to fraction form
    382,319.16/527,628.06 = 212,578.80/x
  3. Step 3: Cross multiply
    382,319.16x = 527,628.06 × 212,578.80
  4. Step 4: Simplify right side
    382,319.16x = 112,162,539,841.13
  5. Step 5: Solve for x
    x = 112,162,539,841.13/382,319.16
  6. Step 6: Final answer
    x = 293,374.10

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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.