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Finding the Fourth Proportional to 501,889.72, 692,609 and 275,549.80

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Solution

The fourth proportional to 501,889.72, 692,609 and 275,549.80 is: 380,259.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,889.72 : 692,609 = 275,549.80 : x
  2. Step 2: Convert to fraction form
    501,889.72/692,609 = 275,549.80/x
  3. Step 3: Cross multiply
    501,889.72x = 692,609 × 275,549.80
  4. Step 4: Simplify right side
    501,889.72x = 190,848,271,428.20
  5. Step 5: Solve for x
    x = 190,848,271,428.20/501,889.72
  6. Step 6: Final answer
    x = 380,259.38

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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.