Home / 526,304.90-726,304.86-290,566.13

Finding the Fourth Proportional to 526,304.90, 726,304.86 and 290,566.13

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Solution

The fourth proportional to 526,304.90, 726,304.86 and 290,566.13 is: 400,983.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,304.90 : 726,304.86 = 290,566.13 : x
  2. Step 2: Convert to fraction form
    526,304.90/726,304.86 = 290,566.13/x
  3. Step 3: Cross multiply
    526,304.90x = 726,304.86 × 290,566.13
  4. Step 4: Simplify right side
    526,304.90x = 211,039,588,738.87
  5. Step 5: Solve for x
    x = 211,039,588,738.87/526,304.90
  6. Step 6: Final answer
    x = 400,983.51

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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.