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Finding the Fourth Proportional to 606,257.40, 907,830.90 and 578,263.80

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Solution

The fourth proportional to 606,257.40, 907,830.90 and 578,263.80 is: 865,912.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,257.40 : 907,830.90 = 578,263.80 : x
  2. Step 2: Convert to fraction form
    606,257.40/907,830.90 = 578,263.80/x
  3. Step 3: Cross multiply
    606,257.40x = 907,830.90 × 578,263.80
  4. Step 4: Simplify right side
    606,257.40x = 524,965,745,991.42
  5. Step 5: Solve for x
    x = 524,965,745,991.42/606,257.40
  6. Step 6: Final answer
    x = 865,912.31

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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.