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Finding the Fourth Proportional to 371,679.80, 554,710.90 and 335,807.60

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Solution

The fourth proportional to 371,679.80, 554,710.90 and 335,807.60 is: 501,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,679.80 : 554,710.90 = 335,807.60 : x
  2. Step 2: Convert to fraction form
    371,679.80/554,710.90 = 335,807.60/x
  3. Step 3: Cross multiply
    371,679.80x = 554,710.90 × 335,807.60
  4. Step 4: Simplify right side
    371,679.80x = 186,276,136,022.84
  5. Step 5: Solve for x
    x = 186,276,136,022.84/371,679.80
  6. Step 6: Final answer
    x = 501,173.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.