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Finding the Fourth Proportional to 429,396.42, 592,555.78 and 238,404.90

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Solution

The fourth proportional to 429,396.42, 592,555.78 and 238,404.90 is: 328,992.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,396.42 : 592,555.78 = 238,404.90 : x
  2. Step 2: Convert to fraction form
    429,396.42/592,555.78 = 238,404.90/x
  3. Step 3: Cross multiply
    429,396.42x = 592,555.78 × 238,404.90
  4. Step 4: Simplify right side
    429,396.42x = 141,268,197,916.53
  5. Step 5: Solve for x
    x = 141,268,197,916.53/429,396.42
  6. Step 6: Final answer
    x = 328,992.50

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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.