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Finding the Fourth Proportional to 826,532.90, 1,237,434.15 and 508,850.90

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Solution

The fourth proportional to 826,532.90, 1,237,434.15 and 508,850.90 is: 761,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,532.90 : 1,237,434.15 = 508,850.90 : x
  2. Step 2: Convert to fraction form
    826,532.90/1,237,434.15 = 508,850.90/x
  3. Step 3: Cross multiply
    826,532.90x = 1,237,434.15 × 508,850.90
  4. Step 4: Simplify right side
    826,532.90x = 629,669,480,918.24
  5. Step 5: Solve for x
    x = 629,669,480,918.24/826,532.90
  6. Step 6: Final answer
    x = 761,820.23

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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.