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Finding the Fourth Proportional to 615,210.10, 923,799.30 and 465,619.30

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Solution

The fourth proportional to 615,210.10, 923,799.30 and 465,619.30 is: 699,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,210.10 : 923,799.30 = 465,619.30 : x
  2. Step 2: Convert to fraction form
    615,210.10/923,799.30 = 465,619.30/x
  3. Step 3: Cross multiply
    615,210.10x = 923,799.30 × 465,619.30
  4. Step 4: Simplify right side
    615,210.10x = 430,138,783,406.49
  5. Step 5: Solve for x
    x = 430,138,783,406.49/615,210.10
  6. Step 6: Final answer
    x = 699,173.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.