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Finding the Fourth Proportional to 382,317.60, 572,820.30 and 249,129.30

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Solution

The fourth proportional to 382,317.60, 572,820.30 and 249,129.30 is: 373,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,317.60 : 572,820.30 = 249,129.30 : x
  2. Step 2: Convert to fraction form
    382,317.60/572,820.30 = 249,129.30/x
  3. Step 3: Cross multiply
    382,317.60x = 572,820.30 × 249,129.30
  4. Step 4: Simplify right side
    382,317.60x = 142,706,320,364.79
  5. Step 5: Solve for x
    x = 142,706,320,364.79/382,317.60
  6. Step 6: Final answer
    x = 373,266.42

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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.