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Finding the Fourth Proportional to 606,058.70, 910,072.20 and 407,260.40

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Solution

The fourth proportional to 606,058.70, 910,072.20 and 407,260.40 is: 611,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,058.70 : 910,072.20 = 407,260.40 : x
  2. Step 2: Convert to fraction form
    606,058.70/910,072.20 = 407,260.40/x
  3. Step 3: Cross multiply
    606,058.70x = 910,072.20 × 407,260.40
  4. Step 4: Simplify right side
    606,058.70x = 370,636,368,200.88
  5. Step 5: Solve for x
    x = 370,636,368,200.88/606,058.70
  6. Step 6: Final answer
    x = 611,551.93

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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.