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Finding the Fourth Proportional to 380,627.76, 571,295.88 and 193,779.12

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Solution

The fourth proportional to 380,627.76, 571,295.88 and 193,779.12 is: 290,849.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,627.76 : 571,295.88 = 193,779.12 : x
  2. Step 2: Convert to fraction form
    380,627.76/571,295.88 = 193,779.12/x
  3. Step 3: Cross multiply
    380,627.76x = 571,295.88 × 193,779.12
  4. Step 4: Simplify right side
    380,627.76x = 110,705,212,886.03
  5. Step 5: Solve for x
    x = 110,705,212,886.03/380,627.76
  6. Step 6: Final answer
    x = 290,849.03

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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.