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Finding the Fourth Proportional to 621,097.62, 931,646.64 and 194,666.54

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Solution

The fourth proportional to 621,097.62, 931,646.64 and 194,666.54 is: 291,999.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,097.62 : 931,646.64 = 194,666.54 : x
  2. Step 2: Convert to fraction form
    621,097.62/931,646.64 = 194,666.54/x
  3. Step 3: Cross multiply
    621,097.62x = 931,646.64 × 194,666.54
  4. Step 4: Simplify right side
    621,097.62x = 181,360,427,911.43
  5. Step 5: Solve for x
    x = 181,360,427,911.43/621,097.62
  6. Step 6: Final answer
    x = 291,999.88

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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.