Home / 681,460.02-940,416.18-409,532.07

Finding the Fourth Proportional to 681,460.02, 940,416.18 and 409,532.07

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Solution

The fourth proportional to 681,460.02, 940,416.18 and 409,532.07 is: 565,155.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,460.02 : 940,416.18 = 409,532.07 : x
  2. Step 2: Convert to fraction form
    681,460.02/940,416.18 = 409,532.07/x
  3. Step 3: Cross multiply
    681,460.02x = 940,416.18 × 409,532.07
  4. Step 4: Simplify right side
    681,460.02x = 385,130,584,856.89
  5. Step 5: Solve for x
    x = 385,130,584,856.89/681,460.02
  6. Step 6: Final answer
    x = 565,155.07

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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.