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Finding the Fourth Proportional to 400,852.01, 553,176 and 219,566.97

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Solution

The fourth proportional to 400,852.01, 553,176 and 219,566.97 is: 303,002.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,852.01 : 553,176 = 219,566.97 : x
  2. Step 2: Convert to fraction form
    400,852.01/553,176 = 219,566.97/x
  3. Step 3: Cross multiply
    400,852.01x = 553,176 × 219,566.97
  4. Step 4: Simplify right side
    400,852.01x = 121,459,178,196.72
  5. Step 5: Solve for x
    x = 121,459,178,196.72/400,852.01
  6. Step 6: Final answer
    x = 303,002.54

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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.