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Finding the Fourth Proportional to 606,692.10, 910,232.55 and 407,237.70

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Solution

The fourth proportional to 606,692.10, 910,232.55 and 407,237.70 is: 610,987.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,692.10 : 910,232.55 = 407,237.70 : x
  2. Step 2: Convert to fraction form
    606,692.10/910,232.55 = 407,237.70/x
  3. Step 3: Cross multiply
    606,692.10x = 910,232.55 × 407,237.70
  4. Step 4: Simplify right side
    606,692.10x = 370,681,010,127.14
  5. Step 5: Solve for x
    x = 370,681,010,127.14/606,692.10
  6. Step 6: Final answer
    x = 610,987.04

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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.