Home / 621,026.40-931,539.60-306,098.40

Finding the Fourth Proportional to 621,026.40, 931,539.60 and 306,098.40

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Solution

The fourth proportional to 621,026.40, 931,539.60 and 306,098.40 is: 459,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,026.40 : 931,539.60 = 306,098.40 : x
  2. Step 2: Convert to fraction form
    621,026.40/931,539.60 = 306,098.40/x
  3. Step 3: Cross multiply
    621,026.40x = 931,539.60 × 306,098.40
  4. Step 4: Simplify right side
    621,026.40x = 285,142,781,096.64
  5. Step 5: Solve for x
    x = 285,142,781,096.64/621,026.40
  6. Step 6: Final answer
    x = 459,147.60

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Similar ratio
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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.