Home / 371,054.07-512,055.60-201,288.20

Finding the Fourth Proportional to 371,054.07, 512,055.60 and 201,288.20

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Solution

The fourth proportional to 371,054.07, 512,055.60 and 201,288.20 is: 277,778.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,054.07 : 512,055.60 = 201,288.20 : x
  2. Step 2: Convert to fraction form
    371,054.07/512,055.60 = 201,288.20/x
  3. Step 3: Cross multiply
    371,054.07x = 512,055.60 × 201,288.20
  4. Step 4: Simplify right side
    371,054.07x = 103,070,747,463.64
  5. Step 5: Solve for x
    x = 103,070,747,463.64/371,054.07
  6. Step 6: Final answer
    x = 277,778.24

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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.