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Finding the Fourth Proportional to 447,178.68, 616,889.76 and 265,762.20

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Solution

The fourth proportional to 447,178.68, 616,889.76 and 265,762.20 is: 366,622.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,178.68 : 616,889.76 = 265,762.20 : x
  2. Step 2: Convert to fraction form
    447,178.68/616,889.76 = 265,762.20/x
  3. Step 3: Cross multiply
    447,178.68x = 616,889.76 × 265,762.20
  4. Step 4: Simplify right side
    447,178.68x = 163,945,979,775.07
  5. Step 5: Solve for x
    x = 163,945,979,775.07/447,178.68
  6. Step 6: Final answer
    x = 366,622.98

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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.