Home / 681,646.20-940,741.74-409,802.64

Finding the Fourth Proportional to 681,646.20, 940,741.74 and 409,802.64

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Solution

The fourth proportional to 681,646.20, 940,741.74 and 409,802.64 is: 565,569.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,646.20 : 940,741.74 = 409,802.64 : x
  2. Step 2: Convert to fraction form
    681,646.20/940,741.74 = 409,802.64/x
  3. Step 3: Cross multiply
    681,646.20x = 940,741.74 × 409,802.64
  4. Step 4: Simplify right side
    681,646.20x = 385,518,448,610.19
  5. Step 5: Solve for x
    x = 385,518,448,610.19/681,646.20
  6. Step 6: Final answer
    x = 565,569.72

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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.