Home / 285,421.12-393,691.30-183,575.45

Finding the Fourth Proportional to 285,421.12, 393,691.30 and 183,575.45

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Solution

The fourth proportional to 285,421.12, 393,691.30 and 183,575.45 is: 253,212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,421.12 : 393,691.30 = 183,575.45 : x
  2. Step 2: Convert to fraction form
    285,421.12/393,691.30 = 183,575.45/x
  3. Step 3: Cross multiply
    285,421.12x = 393,691.30 × 183,575.45
  4. Step 4: Simplify right side
    285,421.12x = 72,272,058,083.87
  5. Step 5: Solve for x
    x = 72,272,058,083.87/285,421.12
  6. Step 6: Final answer
    x = 253,212.02

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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.