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Finding the Fourth Proportional to 739,667.80, 1,109,501.70 and 606,698.20

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Solution

The fourth proportional to 739,667.80, 1,109,501.70 and 606,698.20 is: 910,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,667.80 : 1,109,501.70 = 606,698.20 : x
  2. Step 2: Convert to fraction form
    739,667.80/1,109,501.70 = 606,698.20/x
  3. Step 3: Cross multiply
    739,667.80x = 1,109,501.70 × 606,698.20
  4. Step 4: Simplify right side
    739,667.80x = 673,132,684,286.94
  5. Step 5: Solve for x
    x = 673,132,684,286.94/739,667.80
  6. Step 6: Final answer
    x = 910,047.30

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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.