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Finding the Fourth Proportional to 615,165.10, 923,731.80 and 465,574.30

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Solution

The fourth proportional to 615,165.10, 923,731.80 and 465,574.30 is: 699,106.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,165.10 : 923,731.80 = 465,574.30 : x
  2. Step 2: Convert to fraction form
    615,165.10/923,731.80 = 465,574.30/x
  3. Step 3: Cross multiply
    615,165.10x = 923,731.80 × 465,574.30
  4. Step 4: Simplify right side
    615,165.10x = 430,065,786,172.74
  5. Step 5: Solve for x
    x = 430,065,786,172.74/615,165.10
  6. Step 6: Final answer
    x = 699,106.28

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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.