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Finding the Fourth Proportional to 911,514.78, 1,367,158.80 and 569,988

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Solution

The fourth proportional to 911,514.78, 1,367,158.80 and 569,988 is: 854,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,514.78 : 1,367,158.80 = 569,988 : x
  2. Step 2: Convert to fraction form
    911,514.78/1,367,158.80 = 569,988/x
  3. Step 3: Cross multiply
    911,514.78x = 1,367,158.80 × 569,988
  4. Step 4: Simplify right side
    911,514.78x = 779,264,110,094.40
  5. Step 5: Solve for x
    x = 779,264,110,094.40/911,514.78
  6. Step 6: Final answer
    x = 854,911.11

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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.