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Finding the Fourth Proportional to 528,502.72, 792,725.80 and 186,922.48

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Solution

The fourth proportional to 528,502.72, 792,725.80 and 186,922.48 is: 280,373.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,502.72 : 792,725.80 = 186,922.48 : x
  2. Step 2: Convert to fraction form
    528,502.72/792,725.80 = 186,922.48/x
  3. Step 3: Cross multiply
    528,502.72x = 792,725.80 × 186,922.48
  4. Step 4: Simplify right side
    528,502.72x = 148,178,272,495.98
  5. Step 5: Solve for x
    x = 148,178,272,495.98/528,502.72
  6. Step 6: Final answer
    x = 280,373.72

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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.