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Finding the Fourth Proportional to 4,574.34, 6,312.42 and 2,478.42

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Solution

The fourth proportional to 4,574.34, 6,312.42 and 2,478.42 is: 3,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,574.34 : 6,312.42 = 2,478.42 : x
  2. Step 2: Convert to fraction form
    4,574.34/6,312.42 = 2,478.42/x
  3. Step 3: Cross multiply
    4,574.34x = 6,312.42 × 2,478.42
  4. Step 4: Simplify right side
    4,574.34x = 15,644,827.98
  5. Step 5: Solve for x
    x = 15,644,827.98/4,574.34
  6. Step 6: Final answer
    x = 3,420.13

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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.