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Finding the Fourth Proportional to 532,104.55, 734,319.83 and 290,402.63

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Solution

The fourth proportional to 532,104.55, 734,319.83 and 290,402.63 is: 400,764.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,104.55 : 734,319.83 = 290,402.63 : x
  2. Step 2: Convert to fraction form
    532,104.55/734,319.83 = 290,402.63/x
  3. Step 3: Cross multiply
    532,104.55x = 734,319.83 × 290,402.63
  4. Step 4: Simplify right side
    532,104.55x = 213,248,411,365.95
  5. Step 5: Solve for x
    x = 213,248,411,365.95/532,104.55
  6. Step 6: Final answer
    x = 400,764.12

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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.