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Finding the Fourth Proportional to 614,457.32, 921,685.98 and 193,775.72

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Solution

The fourth proportional to 614,457.32, 921,685.98 and 193,775.72 is: 290,663.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,457.32 : 921,685.98 = 193,775.72 : x
  2. Step 2: Convert to fraction form
    614,457.32/921,685.98 = 193,775.72/x
  3. Step 3: Cross multiply
    614,457.32x = 921,685.98 × 193,775.72
  4. Step 4: Simplify right side
    614,457.32x = 178,600,364,388.41
  5. Step 5: Solve for x
    x = 178,600,364,388.41/614,457.32
  6. Step 6: Final answer
    x = 290,663.58

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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.