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Finding the Fourth Proportional to 476,199.67, 657,153.48 and 261,343.21

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Solution

The fourth proportional to 476,199.67, 657,153.48 and 261,343.21 is: 360,652.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,199.67 : 657,153.48 = 261,343.21 : x
  2. Step 2: Convert to fraction form
    476,199.67/657,153.48 = 261,343.21/x
  3. Step 3: Cross multiply
    476,199.67x = 657,153.48 × 261,343.21
  4. Step 4: Simplify right side
    476,199.67x = 171,742,599,925.87
  5. Step 5: Solve for x
    x = 171,742,599,925.87/476,199.67
  6. Step 6: Final answer
    x = 360,652.50

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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.