Home / 519,740.16-779,545.44-145,792.32

Finding the Fourth Proportional to 519,740.16, 779,545.44 and 145,792.32

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Solution

The fourth proportional to 519,740.16, 779,545.44 and 145,792.32 is: 218,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,740.16 : 779,545.44 = 145,792.32 : x
  2. Step 2: Convert to fraction form
    519,740.16/779,545.44 = 145,792.32/x
  3. Step 3: Cross multiply
    519,740.16x = 779,545.44 × 145,792.32
  4. Step 4: Simplify right side
    519,740.16x = 113,651,738,243.02
  5. Step 5: Solve for x
    x = 113,651,738,243.02/519,740.16
  6. Step 6: Final answer
    x = 218,670.30

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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.