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Finding the Fourth Proportional to 865,840.98, 1,194,864.98 and 483,874.14

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Solution

The fourth proportional to 865,840.98, 1,194,864.98 and 483,874.14 is: 667,748.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,840.98 : 1,194,864.98 = 483,874.14 : x
  2. Step 2: Convert to fraction form
    865,840.98/1,194,864.98 = 483,874.14/x
  3. Step 3: Cross multiply
    865,840.98x = 1,194,864.98 × 483,874.14
  4. Step 4: Simplify right side
    865,840.98x = 578,164,264,613.62
  5. Step 5: Solve for x
    x = 578,164,264,613.62/865,840.98
  6. Step 6: Final answer
    x = 667,748.79

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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.