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Finding the Fourth Proportional to 508,521.34, 761,838.24 and 364,129.12

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Solution

The fourth proportional to 508,521.34, 761,838.24 and 364,129.12 is: 545,517.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,521.34 : 761,838.24 = 364,129.12 : x
  2. Step 2: Convert to fraction form
    508,521.34/761,838.24 = 364,129.12/x
  3. Step 3: Cross multiply
    508,521.34x = 761,838.24 × 364,129.12
  4. Step 4: Simplify right side
    508,521.34x = 277,407,487,913.55
  5. Step 5: Solve for x
    x = 277,407,487,913.55/508,521.34
  6. Step 6: Final answer
    x = 545,517.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.