Home / 621,090.83-931,636.46-194,659.74

Finding the Fourth Proportional to 621,090.83, 931,636.46 and 194,659.74

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Solution

The fourth proportional to 621,090.83, 931,636.46 and 194,659.74 is: 291,989.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,090.83 : 931,636.46 = 194,659.74 : x
  2. Step 2: Convert to fraction form
    621,090.83/931,636.46 = 194,659.74/x
  3. Step 3: Cross multiply
    621,090.83x = 931,636.46 × 194,659.74
  4. Step 4: Simplify right side
    621,090.83x = 181,352,111,564.77
  5. Step 5: Solve for x
    x = 181,352,111,564.77/621,090.83
  6. Step 6: Final answer
    x = 291,989.68

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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.