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Finding the Fourth Proportional to 532,166.85, 734,406.21 and 290,465.28

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Solution

The fourth proportional to 532,166.85, 734,406.21 and 290,465.28 is: 400,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,166.85 : 734,406.21 = 290,465.28 : x
  2. Step 2: Convert to fraction form
    532,166.85/734,406.21 = 290,465.28/x
  3. Step 3: Cross multiply
    532,166.85x = 734,406.21 × 290,465.28
  4. Step 4: Simplify right side
    532,166.85x = 213,319,505,421.39
  5. Step 5: Solve for x
    x = 213,319,505,421.39/532,166.85
  6. Step 6: Final answer
    x = 400,850.80

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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.