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Finding the Fourth Proportional to 442,771.08, 611,005.86 and 261,541.72

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Solution

The fourth proportional to 442,771.08, 611,005.86 and 261,541.72 is: 360,916.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,771.08 : 611,005.86 = 261,541.72 : x
  2. Step 2: Convert to fraction form
    442,771.08/611,005.86 = 261,541.72/x
  3. Step 3: Cross multiply
    442,771.08x = 611,005.86 × 261,541.72
  4. Step 4: Simplify right side
    442,771.08x = 159,803,523,554.48
  5. Step 5: Solve for x
    x = 159,803,523,554.48/442,771.08
  6. Step 6: Final answer
    x = 360,916.81

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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.