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Finding the Fourth Proportional to 577,375,339.35, 866,070,094.91 and 381,890,081.91

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Solution

The fourth proportional to 577,375,339.35, 866,070,094.91 and 381,890,081.91 is: 572,839,809.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,375,339.35 : 866,070,094.91 = 381,890,081.91 : x
  2. Step 2: Convert to fraction form
    577,375,339.35/866,070,094.91 = 381,890,081.91/x
  3. Step 3: Cross multiply
    577,375,339.35x = 866,070,094.91 × 381,890,081.91
  4. Step 4: Simplify right side
    577,375,339.35x = 330,743,579,483,071,936
  5. Step 5: Solve for x
    x = 330,743,579,483,071,936/577,375,339.35
  6. Step 6: Final answer
    x = 572,839,809.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.