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Finding the Fourth Proportional to 472,235.16, 651,665.55 and 257,370.62

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Solution

The fourth proportional to 472,235.16, 651,665.55 and 257,370.62 is: 355,161.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,235.16 : 651,665.55 = 257,370.62 : x
  2. Step 2: Convert to fraction form
    472,235.16/651,665.55 = 257,370.62/x
  3. Step 3: Cross multiply
    472,235.16x = 651,665.55 × 257,370.62
  4. Step 4: Simplify right side
    472,235.16x = 167,719,564,342.95
  5. Step 5: Solve for x
    x = 167,719,564,342.95/472,235.16
  6. Step 6: Final answer
    x = 355,161.11

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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.