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Finding the Fourth Proportional to 371,632.08, 512,569.70 and 257,101.32

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Solution

The fourth proportional to 371,632.08, 512,569.70 and 257,101.32 is: 354,604.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,632.08 : 512,569.70 = 257,101.32 : x
  2. Step 2: Convert to fraction form
    371,632.08/512,569.70 = 257,101.32/x
  3. Step 3: Cross multiply
    371,632.08x = 512,569.70 × 257,101.32
  4. Step 4: Simplify right side
    371,632.08x = 131,782,346,462.00
  5. Step 5: Solve for x
    x = 131,782,346,462.00/371,632.08
  6. Step 6: Final answer
    x = 354,604.33

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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.