Home / 681,275.07-940,114.59-409,181.28

Finding the Fourth Proportional to 681,275.07, 940,114.59 and 409,181.28

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Solution

The fourth proportional to 681,275.07, 940,114.59 and 409,181.28 is: 564,643.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,275.07 : 940,114.59 = 409,181.28 : x
  2. Step 2: Convert to fraction form
    681,275.07/940,114.59 = 409,181.28/x
  3. Step 3: Cross multiply
    681,275.07x = 940,114.59 × 409,181.28
  4. Step 4: Simplify right side
    681,275.07x = 384,677,291,282.88
  5. Step 5: Solve for x
    x = 384,677,291,282.88/681,275.07
  6. Step 6: Final answer
    x = 564,643.13

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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.