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Finding the Fourth Proportional to 472,034.41, 651,407.54 and 257,174.47

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Solution

The fourth proportional to 472,034.41, 651,407.54 and 257,174.47 is: 354,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,034.41 : 651,407.54 = 257,174.47 : x
  2. Step 2: Convert to fraction form
    472,034.41/651,407.54 = 257,174.47/x
  3. Step 3: Cross multiply
    472,034.41x = 651,407.54 × 257,174.47
  4. Step 4: Simplify right side
    472,034.41x = 167,525,388,853.50
  5. Step 5: Solve for x
    x = 167,525,388,853.50/472,034.41
  6. Step 6: Final answer
    x = 354,900.80

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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.