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Finding the Fourth Proportional to 552,674.88, 829,012.32 and 153,315.72

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Solution

The fourth proportional to 552,674.88, 829,012.32 and 153,315.72 is: 229,973.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,674.88 : 829,012.32 = 153,315.72 : x
  2. Step 2: Convert to fraction form
    552,674.88/829,012.32 = 153,315.72/x
  3. Step 3: Cross multiply
    552,674.88x = 829,012.32 × 153,315.72
  4. Step 4: Simplify right side
    552,674.88x = 127,100,620,729.67
  5. Step 5: Solve for x
    x = 127,100,620,729.67/552,674.88
  6. Step 6: Final answer
    x = 229,973.58

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Double scale
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Similar ratio
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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.