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Finding the Fourth Proportional to 606,539.80, 909,809.70 and 577,015.30

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Solution

The fourth proportional to 606,539.80, 909,809.70 and 577,015.30 is: 865,522.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,539.80 : 909,809.70 = 577,015.30 : x
  2. Step 2: Convert to fraction form
    606,539.80/909,809.70 = 577,015.30/x
  3. Step 3: Cross multiply
    606,539.80x = 909,809.70 × 577,015.30
  4. Step 4: Simplify right side
    606,539.80x = 524,974,116,988.41
  5. Step 5: Solve for x
    x = 524,974,116,988.41/606,539.80
  6. Step 6: Final answer
    x = 865,522.95

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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.