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Finding the Fourth Proportional to 666,684.06, 920,045.97 and 364,878.06

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Solution

The fourth proportional to 666,684.06, 920,045.97 and 364,878.06 is: 503,543.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,684.06 : 920,045.97 = 364,878.06 : x
  2. Step 2: Convert to fraction form
    666,684.06/920,045.97 = 364,878.06/x
  3. Step 3: Cross multiply
    666,684.06x = 920,045.97 × 364,878.06
  4. Step 4: Simplify right side
    666,684.06x = 335,704,588,644.42
  5. Step 5: Solve for x
    x = 335,704,588,644.42/666,684.06
  6. Step 6: Final answer
    x = 503,543.75

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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.