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Finding the Fourth Proportional to 401,431.34, 602,147.28 and 101,934.38

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Solution

The fourth proportional to 401,431.34, 602,147.28 and 101,934.38 is: 152,901.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,431.34 : 602,147.28 = 101,934.38 : x
  2. Step 2: Convert to fraction form
    401,431.34/602,147.28 = 101,934.38/x
  3. Step 3: Cross multiply
    401,431.34x = 602,147.28 × 101,934.38
  4. Step 4: Simplify right side
    401,431.34x = 61,379,509,655.49
  5. Step 5: Solve for x
    x = 61,379,509,655.49/401,431.34
  6. Step 6: Final answer
    x = 152,901.64

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1.5x scale

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.