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Finding the Fourth Proportional to 532,455.41, 734,818.28 and 290,760.45

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Solution

The fourth proportional to 532,455.41, 734,818.28 and 290,760.45 is: 401,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,455.41 : 734,818.28 = 290,760.45 : x
  2. Step 2: Convert to fraction form
    532,455.41/734,818.28 = 290,760.45/x
  3. Step 3: Cross multiply
    532,455.41x = 734,818.28 × 290,760.45
  4. Step 4: Simplify right side
    532,455.41x = 213,656,092,307.22
  5. Step 5: Solve for x
    x = 213,656,092,307.22/532,455.41
  6. Step 6: Final answer
    x = 401,265.70

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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.