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Finding the Fourth Proportional to 470,474.40, 702,155.92 and 425,073.44

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Solution

The fourth proportional to 470,474.40, 702,155.92 and 425,073.44 is: 634,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,474.40 : 702,155.92 = 425,073.44 : x
  2. Step 2: Convert to fraction form
    470,474.40/702,155.92 = 425,073.44/x
  3. Step 3: Cross multiply
    470,474.40x = 702,155.92 × 425,073.44
  4. Step 4: Simplify right side
    470,474.40x = 298,467,832,330.77
  5. Step 5: Solve for x
    x = 298,467,832,330.77/470,474.40
  6. Step 6: Final answer
    x = 634,397.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.