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Finding the Fourth Proportional to 370,534.48, 511,347.50 and 225,290.32

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Solution

The fourth proportional to 370,534.48, 511,347.50 and 225,290.32 is: 310,906.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,534.48 : 511,347.50 = 225,290.32 : x
  2. Step 2: Convert to fraction form
    370,534.48/511,347.50 = 225,290.32/x
  3. Step 3: Cross multiply
    370,534.48x = 511,347.50 × 225,290.32
  4. Step 4: Simplify right side
    370,534.48x = 115,201,641,906.20
  5. Step 5: Solve for x
    x = 115,201,641,906.20/370,534.48
  6. Step 6: Final answer
    x = 310,906.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.