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Finding the Fourth Proportional to 519,227.67, 716,570.18 and 289,829.60

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Solution

The fourth proportional to 519,227.67, 716,570.18 and 289,829.60 is: 399,984.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,227.67 : 716,570.18 = 289,829.60 : x
  2. Step 2: Convert to fraction form
    519,227.67/716,570.18 = 289,829.60/x
  3. Step 3: Cross multiply
    519,227.67x = 716,570.18 × 289,829.60
  4. Step 4: Simplify right side
    519,227.67x = 207,683,248,641.33
  5. Step 5: Solve for x
    x = 207,683,248,641.33/519,227.67
  6. Step 6: Final answer
    x = 399,984.94

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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.