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Finding the Fourth Proportional to 670,577.81, 925,421.72 and 384,153.26

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Solution

The fourth proportional to 670,577.81, 925,421.72 and 384,153.26 is: 530,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,577.81 : 925,421.72 = 384,153.26 : x
  2. Step 2: Convert to fraction form
    670,577.81/925,421.72 = 384,153.26/x
  3. Step 3: Cross multiply
    670,577.81x = 925,421.72 × 384,153.26
  4. Step 4: Simplify right side
    670,577.81x = 355,503,764,064.93
  5. Step 5: Solve for x
    x = 355,503,764,064.93/670,577.81
  6. Step 6: Final answer
    x = 530,145.44

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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.