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Finding the Fourth Proportional to 559,670.55, 772,372.76 and 314,732.39

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Solution

The fourth proportional to 559,670.55, 772,372.76 and 314,732.39 is: 434,346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,670.55 : 772,372.76 = 314,732.39 : x
  2. Step 2: Convert to fraction form
    559,670.55/772,372.76 = 314,732.39/x
  3. Step 3: Cross multiply
    559,670.55x = 772,372.76 × 314,732.39
  4. Step 4: Simplify right side
    559,670.55x = 243,090,723,152.03
  5. Step 5: Solve for x
    x = 243,090,723,152.03/559,670.55
  6. Step 6: Final answer
    x = 434,346.11

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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.