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Finding the Fourth Proportional to 470,418.42, 702,072.54 and 425,017.62

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Solution

The fourth proportional to 470,418.42, 702,072.54 and 425,017.62 is: 634,314.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,418.42 : 702,072.54 = 425,017.62 : x
  2. Step 2: Convert to fraction form
    470,418.42/702,072.54 = 425,017.62/x
  3. Step 3: Cross multiply
    470,418.42x = 702,072.54 × 425,017.62
  4. Step 4: Simplify right side
    470,418.42x = 298,393,200,018.16
  5. Step 5: Solve for x
    x = 298,393,200,018.16/470,418.42
  6. Step 6: Final answer
    x = 634,314.45

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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.