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Finding the Fourth Proportional to 478,908.75, 660,898.54 and 264,056.46

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Solution

The fourth proportional to 478,908.75, 660,898.54 and 264,056.46 is: 364,400.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,908.75 : 660,898.54 = 264,056.46 : x
  2. Step 2: Convert to fraction form
    478,908.75/660,898.54 = 264,056.46/x
  3. Step 3: Cross multiply
    478,908.75x = 660,898.54 × 264,056.46
  4. Step 4: Simplify right side
    478,908.75x = 174,514,526,743.27
  5. Step 5: Solve for x
    x = 174,514,526,743.27/478,908.75
  6. Step 6: Final answer
    x = 364,400.37

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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.