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Finding the Fourth Proportional to 470,428.80, 704,476.80 and 377,116.80

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Solution

The fourth proportional to 470,428.80, 704,476.80 and 377,116.80 is: 564,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,428.80 : 704,476.80 = 377,116.80 : x
  2. Step 2: Convert to fraction form
    470,428.80/704,476.80 = 377,116.80/x
  3. Step 3: Cross multiply
    470,428.80x = 704,476.80 × 377,116.80
  4. Step 4: Simplify right side
    470,428.80x = 265,670,036,490.24
  5. Step 5: Solve for x
    x = 265,670,036,490.24/470,428.80
  6. Step 6: Final answer
    x = 564,740.16

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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.