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Finding the Fourth Proportional to 551,426.16, 761,257.16 and 371,086.32

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Solution

The fourth proportional to 551,426.16, 761,257.16 and 371,086.32 is: 512,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,426.16 : 761,257.16 = 371,086.32 : x
  2. Step 2: Convert to fraction form
    551,426.16/761,257.16 = 371,086.32/x
  3. Step 3: Cross multiply
    551,426.16x = 761,257.16 × 371,086.32
  4. Step 4: Simplify right side
    551,426.16x = 282,492,118,078.05
  5. Step 5: Solve for x
    x = 282,492,118,078.05/551,426.16
  6. Step 6: Final answer
    x = 512,293.65

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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.