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Finding the Fourth Proportional to 532,370.07, 734,659.47 and 290,640.96

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Solution

The fourth proportional to 532,370.07, 734,659.47 and 290,640.96 is: 401,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,370.07 : 734,659.47 = 290,640.96 : x
  2. Step 2: Convert to fraction form
    532,370.07/734,659.47 = 290,640.96/x
  3. Step 3: Cross multiply
    532,370.07x = 734,659.47 × 290,640.96
  4. Step 4: Simplify right side
    532,370.07x = 213,522,133,633.89
  5. Step 5: Solve for x
    x = 213,522,133,633.89/532,370.07
  6. Step 6: Final answer
    x = 401,078.40

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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.