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Finding the Fourth Proportional to 606,823.40, 910,235.10 and 417,866.60

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Solution

The fourth proportional to 606,823.40, 910,235.10 and 417,866.60 is: 626,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,823.40 : 910,235.10 = 417,866.60 : x
  2. Step 2: Convert to fraction form
    606,823.40/910,235.10 = 417,866.60/x
  3. Step 3: Cross multiply
    606,823.40x = 910,235.10 × 417,866.60
  4. Step 4: Simplify right side
    606,823.40x = 380,356,846,437.66
  5. Step 5: Solve for x
    x = 380,356,846,437.66/606,823.40
  6. Step 6: Final answer
    x = 626,799.90

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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.