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Finding the Fourth Proportional to 523,555.02, 722,486.97 and 319,946.76

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Solution

The fourth proportional to 523,555.02, 722,486.97 and 319,946.76 is: 441,514.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,555.02 : 722,486.97 = 319,946.76 : x
  2. Step 2: Convert to fraction form
    523,555.02/722,486.97 = 319,946.76/x
  3. Step 3: Cross multiply
    523,555.02x = 722,486.97 × 319,946.76
  4. Step 4: Simplify right side
    523,555.02x = 231,157,365,193.72
  5. Step 5: Solve for x
    x = 231,157,365,193.72/523,555.02
  6. Step 6: Final answer
    x = 441,514.94

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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.