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Finding the Fourth Proportional to 578,816.71, 798,327.93 and 507,072.22

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Solution

The fourth proportional to 578,816.71, 798,327.93 and 507,072.22 is: 699,374.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,816.71 : 798,327.93 = 507,072.22 : x
  2. Step 2: Convert to fraction form
    578,816.71/798,327.93 = 507,072.22/x
  3. Step 3: Cross multiply
    578,816.71x = 798,327.93 × 507,072.22
  4. Step 4: Simplify right side
    578,816.71x = 404,809,915,753.11
  5. Step 5: Solve for x
    x = 404,809,915,753.11/578,816.71
  6. Step 6: Final answer
    x = 699,374.96

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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.