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Finding the Fourth Proportional to 447,172.68, 616,881.48 and 265,756.20

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Solution

The fourth proportional to 447,172.68, 616,881.48 and 265,756.20 is: 366,614.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,172.68 : 616,881.48 = 265,756.20 : x
  2. Step 2: Convert to fraction form
    447,172.68/616,881.48 = 265,756.20/x
  3. Step 3: Cross multiply
    447,172.68x = 616,881.48 × 265,756.20
  4. Step 4: Simplify right side
    447,172.68x = 163,940,077,975.18
  5. Step 5: Solve for x
    x = 163,940,077,975.18/447,172.68
  6. Step 6: Final answer
    x = 366,614.70

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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.