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Finding the Fourth Proportional to 606,725.60, 910,282.80 and 407,271.20

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Solution

The fourth proportional to 606,725.60, 910,282.80 and 407,271.20 is: 611,037.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,725.60 : 910,282.80 = 407,271.20 : x
  2. Step 2: Convert to fraction form
    606,725.60/910,282.80 = 407,271.20/x
  3. Step 3: Cross multiply
    606,725.60x = 910,282.80 × 407,271.20
  4. Step 4: Simplify right side
    606,725.60x = 370,731,968,295.36
  5. Step 5: Solve for x
    x = 370,731,968,295.36/606,725.60
  6. Step 6: Final answer
    x = 611,037.29

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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.