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Finding the Fourth Proportional to 425,335.42, 637,401.30 and 235,879.12

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Solution

The fourth proportional to 425,335.42, 637,401.30 and 235,879.12 is: 353,484.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,335.42 : 637,401.30 = 235,879.12 : x
  2. Step 2: Convert to fraction form
    425,335.42/637,401.30 = 235,879.12/x
  3. Step 3: Cross multiply
    425,335.42x = 637,401.30 × 235,879.12
  4. Step 4: Simplify right side
    425,335.42x = 150,349,657,730.86
  5. Step 5: Solve for x
    x = 150,349,657,730.86/425,335.42
  6. Step 6: Final answer
    x = 353,484.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.