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Finding the Fourth Proportional to 358,247.40, 494,045.86 and 222,303.48

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Solution

The fourth proportional to 358,247.40, 494,045.86 and 222,303.48 is: 306,570.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,247.40 : 494,045.86 = 222,303.48 : x
  2. Step 2: Convert to fraction form
    358,247.40/494,045.86 = 222,303.48/x
  3. Step 3: Cross multiply
    358,247.40x = 494,045.86 × 222,303.48
  4. Step 4: Simplify right side
    358,247.40x = 109,828,113,957.59
  5. Step 5: Solve for x
    x = 109,828,113,957.59/358,247.40
  6. Step 6: Final answer
    x = 306,570.58

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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.