Home / 883,778.46-1,219,654.29-521,217.60

Finding the Fourth Proportional to 883,778.46, 1,219,654.29 and 521,217.60

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Solution

The fourth proportional to 883,778.46, 1,219,654.29 and 521,217.60 is: 719,303.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,778.46 : 1,219,654.29 = 521,217.60 : x
  2. Step 2: Convert to fraction form
    883,778.46/1,219,654.29 = 521,217.60/x
  3. Step 3: Cross multiply
    883,778.46x = 1,219,654.29 × 521,217.60
  4. Step 4: Simplify right side
    883,778.46x = 635,705,281,863.50
  5. Step 5: Solve for x
    x = 635,705,281,863.50/883,778.46
  6. Step 6: Final answer
    x = 719,303.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.