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Finding the Fourth Proportional to 666,320.02, 919,543.36 and 364,514.02

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Solution

The fourth proportional to 666,320.02, 919,543.36 and 364,514.02 is: 503,041.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,320.02 : 919,543.36 = 364,514.02 : x
  2. Step 2: Convert to fraction form
    666,320.02/919,543.36 = 364,514.02/x
  3. Step 3: Cross multiply
    666,320.02x = 919,543.36 × 364,514.02
  4. Step 4: Simplify right side
    666,320.02x = 335,186,446,717.91
  5. Step 5: Solve for x
    x = 335,186,446,717.91/666,320.02
  6. Step 6: Final answer
    x = 503,041.24

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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.