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Finding the Fourth Proportional to 704,476.72, 1,054,312.62 and 448,179.76

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Solution

The fourth proportional to 704,476.72, 1,054,312.62 and 448,179.76 is: 670,741.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,476.72 : 1,054,312.62 = 448,179.76 : x
  2. Step 2: Convert to fraction form
    704,476.72/1,054,312.62 = 448,179.76/x
  3. Step 3: Cross multiply
    704,476.72x = 1,054,312.62 × 448,179.76
  4. Step 4: Simplify right side
    704,476.72x = 472,521,576,996.57
  5. Step 5: Solve for x
    x = 472,521,576,996.57/704,476.72
  6. Step 6: Final answer
    x = 670,741.22

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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.