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Finding the Fourth Proportional to 606,437.80, 909,656.70 and 576,913.30

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Solution

The fourth proportional to 606,437.80, 909,656.70 and 576,913.30 is: 865,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,437.80 : 909,656.70 = 576,913.30 : x
  2. Step 2: Convert to fraction form
    606,437.80/909,656.70 = 576,913.30/x
  3. Step 3: Cross multiply
    606,437.80x = 909,656.70 × 576,913.30
  4. Step 4: Simplify right side
    606,437.80x = 524,793,048,664.11
  5. Step 5: Solve for x
    x = 524,793,048,664.11/606,437.80
  6. Step 6: Final answer
    x = 865,369.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.