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Finding the Fourth Proportional to 656,842.80, 985,264.20 and 603,698.70

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Solution

The fourth proportional to 656,842.80, 985,264.20 and 603,698.70 is: 905,548.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,842.80 : 985,264.20 = 603,698.70 : x
  2. Step 2: Convert to fraction form
    656,842.80/985,264.20 = 603,698.70/x
  3. Step 3: Cross multiply
    656,842.80x = 985,264.20 × 603,698.70
  4. Step 4: Simplify right side
    656,842.80x = 594,802,716,696.54
  5. Step 5: Solve for x
    x = 594,802,716,696.54/656,842.80
  6. Step 6: Final answer
    x = 905,548.05

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Double scale
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Similar ratio
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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.