Home / 631,657.16-947,977.07-440,878.14

Finding the Fourth Proportional to 631,657.16, 947,977.07 and 440,878.14

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Solution

The fourth proportional to 631,657.16, 947,977.07 and 440,878.14 is: 661,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,657.16 : 947,977.07 = 440,878.14 : x
  2. Step 2: Convert to fraction form
    631,657.16/947,977.07 = 440,878.14/x
  3. Step 3: Cross multiply
    631,657.16x = 947,977.07 × 440,878.14
  4. Step 4: Simplify right side
    631,657.16x = 417,942,365,179.86
  5. Step 5: Solve for x
    x = 417,942,365,179.86/631,657.16
  6. Step 6: Final answer
    x = 661,660.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.