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Finding the Fourth Proportional to 519,998.96, 779,425.94 and 340,010.16

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Solution

The fourth proportional to 519,998.96, 779,425.94 and 340,010.16 is: 509,640.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,998.96 : 779,425.94 = 340,010.16 : x
  2. Step 2: Convert to fraction form
    519,998.96/779,425.94 = 340,010.16/x
  3. Step 3: Cross multiply
    519,998.96x = 779,425.94 × 340,010.16
  4. Step 4: Simplify right side
    519,998.96x = 265,012,738,567.55
  5. Step 5: Solve for x
    x = 265,012,738,567.55/519,998.96
  6. Step 6: Final answer
    x = 509,640.90

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1.5x scale

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.