Home / 380,233.12-524,675.64-219,140.32

Finding the Fourth Proportional to 380,233.12, 524,675.64 and 219,140.32

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Solution

The fourth proportional to 380,233.12, 524,675.64 and 219,140.32 is: 302,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,233.12 : 524,675.64 = 219,140.32 : x
  2. Step 2: Convert to fraction form
    380,233.12/524,675.64 = 219,140.32/x
  3. Step 3: Cross multiply
    380,233.12x = 524,675.64 × 219,140.32
  4. Step 4: Simplify right side
    380,233.12x = 114,977,587,645.81
  5. Step 5: Solve for x
    x = 114,977,587,645.81/380,233.12
  6. Step 6: Final answer
    x = 302,387.09

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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.