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Finding the Fourth Proportional to 532,103.60, 734,318.53 and 290,401.70

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Solution

The fourth proportional to 532,103.60, 734,318.53 and 290,401.70 is: 400,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,103.60 : 734,318.53 = 290,401.70 : x
  2. Step 2: Convert to fraction form
    532,103.60/734,318.53 = 290,401.70/x
  3. Step 3: Cross multiply
    532,103.60x = 734,318.53 × 290,401.70
  4. Step 4: Simplify right side
    532,103.60x = 213,247,345,055.90
  5. Step 5: Solve for x
    x = 213,247,345,055.90/532,103.60
  6. Step 6: Final answer
    x = 400,762.83

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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.