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Finding the Fourth Proportional to 472,222.79, 651,648.48 and 257,358.24

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Solution

The fourth proportional to 472,222.79, 651,648.48 and 257,358.24 is: 355,144.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,222.79 : 651,648.48 = 257,358.24 : x
  2. Step 2: Convert to fraction form
    472,222.79/651,648.48 = 257,358.24/x
  3. Step 3: Cross multiply
    472,222.79x = 651,648.48 × 257,358.24
  4. Step 4: Simplify right side
    472,222.79x = 167,707,104,946.38
  5. Step 5: Solve for x
    x = 167,707,104,946.38/472,222.79
  6. Step 6: Final answer
    x = 355,144.03

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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.