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Finding the Fourth Proportional to 517,296.03, 713,861.55 and 290,941.53

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Solution

The fourth proportional to 517,296.03, 713,861.55 and 290,941.53 is: 401,495.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,296.03 : 713,861.55 = 290,941.53 : x
  2. Step 2: Convert to fraction form
    517,296.03/713,861.55 = 290,941.53/x
  3. Step 3: Cross multiply
    517,296.03x = 713,861.55 × 290,941.53
  4. Step 4: Simplify right side
    517,296.03x = 207,691,971,565.17
  5. Step 5: Solve for x
    x = 207,691,971,565.17/517,296.03
  6. Step 6: Final answer
    x = 401,495.39

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1.5x scale

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.