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Finding the Fourth Proportional to 472,235.92, 651,666.56 and 257,371.36

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Solution

The fourth proportional to 472,235.92, 651,666.56 and 257,371.36 is: 355,162.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,235.92 : 651,666.56 = 257,371.36 : x
  2. Step 2: Convert to fraction form
    472,235.92/651,666.56 = 257,371.36/x
  3. Step 3: Cross multiply
    472,235.92x = 651,666.56 × 257,371.36
  4. Step 4: Simplify right side
    472,235.92x = 167,720,308,813.72
  5. Step 5: Solve for x
    x = 167,720,308,813.72/472,235.92
  6. Step 6: Final answer
    x = 355,162.12

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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.