Home / 1,091,772.81-1,637,659.22-426,458.25

Finding the Fourth Proportional to 1,091,772.81, 1,637,659.22 and 426,458.25

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Solution

The fourth proportional to 1,091,772.81, 1,637,659.22 and 426,458.25 is: 639,687.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,772.81 : 1,637,659.22 = 426,458.25 : x
  2. Step 2: Convert to fraction form
    1,091,772.81/1,637,659.22 = 426,458.25/x
  3. Step 3: Cross multiply
    1,091,772.81x = 1,637,659.22 × 426,458.25
  4. Step 4: Simplify right side
    1,091,772.81x = 698,393,282,925.27
  5. Step 5: Solve for x
    x = 698,393,282,925.27/1,091,772.81
  6. Step 6: Final answer
    x = 639,687.38

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Double scale
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Similar ratio
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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.