Home / 712,267.64-982,929.48-389,998.52

Finding the Fourth Proportional to 712,267.64, 982,929.48 and 389,998.52

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Solution

The fourth proportional to 712,267.64, 982,929.48 and 389,998.52 is: 538,198.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,267.64 : 982,929.48 = 389,998.52 : x
  2. Step 2: Convert to fraction form
    712,267.64/982,929.48 = 389,998.52/x
  3. Step 3: Cross multiply
    712,267.64x = 982,929.48 × 389,998.52
  4. Step 4: Simplify right side
    712,267.64x = 383,341,042,464.37
  5. Step 5: Solve for x
    x = 383,341,042,464.37/712,267.64
  6. Step 6: Final answer
    x = 538,198.03

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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.