Home / 691,464.18-954,150.60-385,511.59

Finding the Fourth Proportional to 691,464.18, 954,150.60 and 385,511.59

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Solution

The fourth proportional to 691,464.18, 954,150.60 and 385,511.59 is: 531,966.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,464.18 : 954,150.60 = 385,511.59 : x
  2. Step 2: Convert to fraction form
    691,464.18/954,150.60 = 385,511.59/x
  3. Step 3: Cross multiply
    691,464.18x = 954,150.60 × 385,511.59
  4. Step 4: Simplify right side
    691,464.18x = 367,836,114,905.45
  5. Step 5: Solve for x
    x = 367,836,114,905.45/691,464.18
  6. Step 6: Final answer
    x = 531,966.98

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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.