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Finding the Fourth Proportional to 430,078.08, 593,421.12 and 251,195.52

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Solution

The fourth proportional to 430,078.08, 593,421.12 and 251,195.52 is: 346,599.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,078.08 : 593,421.12 = 251,195.52 : x
  2. Step 2: Convert to fraction form
    430,078.08/593,421.12 = 251,195.52/x
  3. Step 3: Cross multiply
    430,078.08x = 593,421.12 × 251,195.52
  4. Step 4: Simplify right side
    430,078.08x = 149,064,726,817.38
  5. Step 5: Solve for x
    x = 149,064,726,817.38/430,078.08
  6. Step 6: Final answer
    x = 346,599.22

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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.