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Finding the Fourth Proportional to 621,092.61, 931,639.13 and 194,661.53

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Solution

The fourth proportional to 621,092.61, 931,639.13 and 194,661.53 is: 291,992.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,092.61 : 931,639.13 = 194,661.53 : x
  2. Step 2: Convert to fraction form
    621,092.61/931,639.13 = 194,661.53/x
  3. Step 3: Cross multiply
    621,092.61x = 931,639.13 × 194,661.53
  4. Step 4: Simplify right side
    621,092.61x = 181,354,298,140.76
  5. Step 5: Solve for x
    x = 181,354,298,140.76/621,092.61
  6. Step 6: Final answer
    x = 291,992.36

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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.