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Finding the Fourth Proportional to 606,931.90, 910,069.80 and 251,981.80

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Solution

The fourth proportional to 606,931.90, 910,069.80 and 251,981.80 is: 377,836.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,931.90 : 910,069.80 = 251,981.80 : x
  2. Step 2: Convert to fraction form
    606,931.90/910,069.80 = 251,981.80/x
  3. Step 3: Cross multiply
    606,931.90x = 910,069.80 × 251,981.80
  4. Step 4: Simplify right side
    606,931.90x = 229,321,026,329.64
  5. Step 5: Solve for x
    x = 229,321,026,329.64/606,931.90
  6. Step 6: Final answer
    x = 377,836.50

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1.5x scale

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.