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Finding the Fourth Proportional to 591,703.20, 886,971.60 and 291,938.40

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Solution

The fourth proportional to 591,703.20, 886,971.60 and 291,938.40 is: 437,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,703.20 : 886,971.60 = 291,938.40 : x
  2. Step 2: Convert to fraction form
    591,703.20/886,971.60 = 291,938.40/x
  3. Step 3: Cross multiply
    591,703.20x = 886,971.60 × 291,938.40
  4. Step 4: Simplify right side
    591,703.20x = 258,941,069,749.44
  5. Step 5: Solve for x
    x = 258,941,069,749.44/591,703.20
  6. Step 6: Final answer
    x = 437,619.86

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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.