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Finding the Fourth Proportional to 569,779.76, 786,247.08 and 315,067.16

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Solution

The fourth proportional to 569,779.76, 786,247.08 and 315,067.16 is: 434,765.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,779.76 : 786,247.08 = 315,067.16 : x
  2. Step 2: Convert to fraction form
    569,779.76/786,247.08 = 315,067.16/x
  3. Step 3: Cross multiply
    569,779.76x = 786,247.08 × 315,067.16
  4. Step 4: Simplify right side
    569,779.76x = 247,720,634,553.89
  5. Step 5: Solve for x
    x = 247,720,634,553.89/569,779.76
  6. Step 6: Final answer
    x = 434,765.59

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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.