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Finding the Fourth Proportional to 703,268.99, 970,507.32 and 380,985.38

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Solution

The fourth proportional to 703,268.99, 970,507.32 and 380,985.38 is: 525,757.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,268.99 : 970,507.32 = 380,985.38 : x
  2. Step 2: Convert to fraction form
    703,268.99/970,507.32 = 380,985.38/x
  3. Step 3: Cross multiply
    703,268.99x = 970,507.32 × 380,985.38
  4. Step 4: Simplify right side
    703,268.99x = 369,749,097,461.15
  5. Step 5: Solve for x
    x = 369,749,097,461.15/703,268.99
  6. Step 6: Final answer
    x = 525,757.72

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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.