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Finding the Fourth Proportional to 476,627.25, 657,803.97 and 275,423.25

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Solution

The fourth proportional to 476,627.25, 657,803.97 and 275,423.25 is: 380,117.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,627.25 : 657,803.97 = 275,423.25 : x
  2. Step 2: Convert to fraction form
    476,627.25/657,803.97 = 275,423.25/x
  3. Step 3: Cross multiply
    476,627.25x = 657,803.97 × 275,423.25
  4. Step 4: Simplify right side
    476,627.25x = 181,174,507,280.30
  5. Step 5: Solve for x
    x = 181,174,507,280.30/476,627.25
  6. Step 6: Final answer
    x = 380,117.81

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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.