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Finding the Fourth Proportional to 472,284.98, 651,746.66 and 257,425.90

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Solution

The fourth proportional to 472,284.98, 651,746.66 and 257,425.90 is: 355,244.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,284.98 : 651,746.66 = 257,425.90 : x
  2. Step 2: Convert to fraction form
    472,284.98/651,746.66 = 257,425.90/x
  3. Step 3: Cross multiply
    472,284.98x = 651,746.66 × 257,425.90
  4. Step 4: Simplify right side
    472,284.98x = 167,776,467,606.00
  5. Step 5: Solve for x
    x = 167,776,467,606.00/472,284.98
  6. Step 6: Final answer
    x = 355,244.13

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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.