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Finding the Fourth Proportional to 469,868.96, 648,418.92 and 265,916.20

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Solution

The fourth proportional to 469,868.96, 648,418.92 and 265,916.20 is: 366,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,868.96 : 648,418.92 = 265,916.20 : x
  2. Step 2: Convert to fraction form
    469,868.96/648,418.92 = 265,916.20/x
  3. Step 3: Cross multiply
    469,868.96x = 648,418.92 × 265,916.20
  4. Step 4: Simplify right side
    469,868.96x = 172,425,095,214.50
  5. Step 5: Solve for x
    x = 172,425,095,214.50/469,868.96
  6. Step 6: Final answer
    x = 366,964.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.