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Finding the Fourth Proportional to 310,246.20, 465,369.30 and 248,038.20

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Solution

The fourth proportional to 310,246.20, 465,369.30 and 248,038.20 is: 372,057.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,246.20 : 465,369.30 = 248,038.20 : x
  2. Step 2: Convert to fraction form
    310,246.20/465,369.30 = 248,038.20/x
  3. Step 3: Cross multiply
    310,246.20x = 465,369.30 × 248,038.20
  4. Step 4: Simplify right side
    310,246.20x = 115,429,363,507.26
  5. Step 5: Solve for x
    x = 115,429,363,507.26/310,246.20
  6. Step 6: Final answer
    x = 372,057.30

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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.