Home / 380,523.13-525,130.41-217,176.36

Finding the Fourth Proportional to 380,523.13, 525,130.41 and 217,176.36

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Solution

The fourth proportional to 380,523.13, 525,130.41 and 217,176.36 is: 299,708.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,523.13 : 525,130.41 = 217,176.36 : x
  2. Step 2: Convert to fraction form
    380,523.13/525,130.41 = 217,176.36/x
  3. Step 3: Cross multiply
    380,523.13x = 525,130.41 × 217,176.36
  4. Step 4: Simplify right side
    380,523.13x = 114,045,909,883.23
  5. Step 5: Solve for x
    x = 114,045,909,883.23/380,523.13
  6. Step 6: Final answer
    x = 299,708.22

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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.