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Finding the Fourth Proportional to 673,706.10, 1,010,559.15 and 618,593.70

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Solution

The fourth proportional to 673,706.10, 1,010,559.15 and 618,593.70 is: 927,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,706.10 : 1,010,559.15 = 618,593.70 : x
  2. Step 2: Convert to fraction form
    673,706.10/1,010,559.15 = 618,593.70/x
  3. Step 3: Cross multiply
    673,706.10x = 1,010,559.15 × 618,593.70
  4. Step 4: Simplify right side
    673,706.10x = 625,125,523,667.36
  5. Step 5: Solve for x
    x = 625,125,523,667.36/673,706.10
  6. Step 6: Final answer
    x = 927,890.55

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Half scale
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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.