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Finding the Fourth Proportional to 569,766.35, 786,519.67 and 355,012.53

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Solution

The fourth proportional to 569,766.35, 786,519.67 and 355,012.53 is: 490,068.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,766.35 : 786,519.67 = 355,012.53 : x
  2. Step 2: Convert to fraction form
    569,766.35/786,519.67 = 355,012.53/x
  3. Step 3: Cross multiply
    569,766.35x = 786,519.67 × 355,012.53
  4. Step 4: Simplify right side
    569,766.35x = 279,224,337,941.47
  5. Step 5: Solve for x
    x = 279,224,337,941.47/569,766.35
  6. Step 6: Final answer
    x = 490,068.14

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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.