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Finding the Fourth Proportional to 528,410.42, 792,663.84 and 149,336.63

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Solution

The fourth proportional to 528,410.42, 792,663.84 and 149,336.63 is: 224,018.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,410.42 : 792,663.84 = 149,336.63 : x
  2. Step 2: Convert to fraction form
    528,410.42/792,663.84 = 149,336.63/x
  3. Step 3: Cross multiply
    528,410.42x = 792,663.84 × 149,336.63
  4. Step 4: Simplify right side
    528,410.42x = 118,373,746,588.46
  5. Step 5: Solve for x
    x = 118,373,746,588.46/528,410.42
  6. Step 6: Final answer
    x = 224,018.57

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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.