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Finding the Fourth Proportional to 670,578.95, 925,423.28 and 384,154.39

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Solution

The fourth proportional to 670,578.95, 925,423.28 and 384,154.39 is: 530,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,578.95 : 925,423.28 = 384,154.39 : x
  2. Step 2: Convert to fraction form
    670,578.95/925,423.28 = 384,154.39/x
  3. Step 3: Cross multiply
    670,578.95x = 925,423.28 × 384,154.39
  4. Step 4: Simplify right side
    670,578.95x = 355,505,415,620.20
  5. Step 5: Solve for x
    x = 355,505,415,620.20/670,578.95
  6. Step 6: Final answer
    x = 530,147.00

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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.