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Finding the Fourth Proportional to 472,175.47, 651,602.28 and 257,315.59

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Solution

The fourth proportional to 472,175.47, 651,602.28 and 257,315.59 is: 355,095.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,175.47 : 651,602.28 = 257,315.59 : x
  2. Step 2: Convert to fraction form
    472,175.47/651,602.28 = 257,315.59/x
  3. Step 3: Cross multiply
    472,175.47x = 651,602.28 × 257,315.59
  4. Step 4: Simplify right side
    472,175.47x = 167,667,425,123.55
  5. Step 5: Solve for x
    x = 167,667,425,123.55/472,175.47
  6. Step 6: Final answer
    x = 355,095.59

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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.