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Finding the Fourth Proportional to 644,907.40, 966,194.70 and 525,934.60

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Solution

The fourth proportional to 644,907.40, 966,194.70 and 525,934.60 is: 787,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,907.40 : 966,194.70 = 525,934.60 : x
  2. Step 2: Convert to fraction form
    644,907.40/966,194.70 = 525,934.60/x
  3. Step 3: Cross multiply
    644,907.40x = 966,194.70 × 525,934.60
  4. Step 4: Simplify right side
    644,907.40x = 508,155,223,066.62
  5. Step 5: Solve for x
    x = 508,155,223,066.62/644,907.40
  6. Step 6: Final answer
    x = 787,950.68

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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.