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Finding the Fourth Proportional to 837,640.92, 1,155,683.34 and 475,036.32

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Solution

The fourth proportional to 837,640.92, 1,155,683.34 and 475,036.32 is: 655,402.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,640.92 : 1,155,683.34 = 475,036.32 : x
  2. Step 2: Convert to fraction form
    837,640.92/1,155,683.34 = 475,036.32/x
  3. Step 3: Cross multiply
    837,640.92x = 1,155,683.34 × 475,036.32
  4. Step 4: Simplify right side
    837,640.92x = 548,991,560,918.91
  5. Step 5: Solve for x
    x = 548,991,560,918.91/837,640.92
  6. Step 6: Final answer
    x = 655,402.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.