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Finding the Fourth Proportional to 248,312.40, 373,246.20 and 243,646.80

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Solution

The fourth proportional to 248,312.40, 373,246.20 and 243,646.80 is: 366,233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,312.40 : 373,246.20 = 243,646.80 : x
  2. Step 2: Convert to fraction form
    248,312.40/373,246.20 = 243,646.80/x
  3. Step 3: Cross multiply
    248,312.40x = 373,246.20 × 243,646.80
  4. Step 4: Simplify right side
    248,312.40x = 90,940,242,242.16
  5. Step 5: Solve for x
    x = 90,940,242,242.16/248,312.40
  6. Step 6: Final answer
    x = 366,233.19

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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.