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Finding the Fourth Proportional to 368,445.40, 552,668.10 and 275,133.40

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Solution

The fourth proportional to 368,445.40, 552,668.10 and 275,133.40 is: 412,700.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,445.40 : 552,668.10 = 275,133.40 : x
  2. Step 2: Convert to fraction form
    368,445.40/552,668.10 = 275,133.40/x
  3. Step 3: Cross multiply
    368,445.40x = 552,668.10 × 275,133.40
  4. Step 4: Simplify right side
    368,445.40x = 152,057,453,424.54
  5. Step 5: Solve for x
    x = 152,057,453,424.54/368,445.40
  6. Step 6: Final answer
    x = 412,700.10

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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.