Home / 661,055.19-906,315.04-649,097.76

Finding the Fourth Proportional to 661,055.19, 906,315.04 and 649,097.76

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Solution

The fourth proportional to 661,055.19, 906,315.04 and 649,097.76 is: 889,921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,055.19 : 906,315.04 = 649,097.76 : x
  2. Step 2: Convert to fraction form
    661,055.19/906,315.04 = 649,097.76/x
  3. Step 3: Cross multiply
    661,055.19x = 906,315.04 × 649,097.76
  4. Step 4: Simplify right side
    661,055.19x = 588,287,062,318.31
  5. Step 5: Solve for x
    x = 588,287,062,318.31/661,055.19
  6. Step 6: Final answer
    x = 889,921.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.