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Finding the Fourth Proportional to 551,685.51, 761,665.67 and 437,425.70

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Solution

The fourth proportional to 551,685.51, 761,665.67 and 437,425.70 is: 603,916.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,685.51 : 761,665.67 = 437,425.70 : x
  2. Step 2: Convert to fraction form
    551,685.51/761,665.67 = 437,425.70/x
  3. Step 3: Cross multiply
    551,685.51x = 761,665.67 × 437,425.70
  4. Step 4: Simplify right side
    551,685.51x = 333,172,138,865.72
  5. Step 5: Solve for x
    x = 333,172,138,865.72/551,685.51
  6. Step 6: Final answer
    x = 603,916.78

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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.