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Finding the Fourth Proportional to 404,779, 607,197.66 and 155,461

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Solution

The fourth proportional to 404,779, 607,197.66 and 155,461 is: 233,202.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,779 : 607,197.66 = 155,461 : x
  2. Step 2: Convert to fraction form
    404,779/607,197.66 = 155,461/x
  3. Step 3: Cross multiply
    404,779x = 607,197.66 × 155,461
  4. Step 4: Simplify right side
    404,779x = 94,395,555,421.26
  5. Step 5: Solve for x
    x = 94,395,555,421.26/404,779
  6. Step 6: Final answer
    x = 233,202.70

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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.