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Finding the Fourth Proportional to 427,062.93, 640,465.01 and 224,549.93

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Solution

The fourth proportional to 427,062.93, 640,465.01 and 224,549.93 is: 336,756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,062.93 : 640,465.01 = 224,549.93 : x
  2. Step 2: Convert to fraction form
    427,062.93/640,465.01 = 224,549.93/x
  3. Step 3: Cross multiply
    427,062.93x = 640,465.01 × 224,549.93
  4. Step 4: Simplify right side
    427,062.93x = 143,816,368,837.88
  5. Step 5: Solve for x
    x = 143,816,368,837.88/427,062.93
  6. Step 6: Final answer
    x = 336,756.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.