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Finding the Fourth Proportional to 609,511.10, 912,517.05 and 373,315.10

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Solution

The fourth proportional to 609,511.10, 912,517.05 and 373,315.10 is: 558,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,511.10 : 912,517.05 = 373,315.10 : x
  2. Step 2: Convert to fraction form
    609,511.10/912,517.05 = 373,315.10/x
  3. Step 3: Cross multiply
    609,511.10x = 912,517.05 × 373,315.10
  4. Step 4: Simplify right side
    609,511.10x = 340,656,393,772.46
  5. Step 5: Solve for x
    x = 340,656,393,772.46/609,511.10
  6. Step 6: Final answer
    x = 558,901.05

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Double scale
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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.