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Finding the Fourth Proportional to 702,995.70, 1,054,493.55 and 323,915.70

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Solution

The fourth proportional to 702,995.70, 1,054,493.55 and 323,915.70 is: 485,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,995.70 : 1,054,493.55 = 323,915.70 : x
  2. Step 2: Convert to fraction form
    702,995.70/1,054,493.55 = 323,915.70/x
  3. Step 3: Cross multiply
    702,995.70x = 1,054,493.55 × 323,915.70
  4. Step 4: Simplify right side
    702,995.70x = 341,567,016,393.74
  5. Step 5: Solve for x
    x = 341,567,016,393.74/702,995.70
  6. Step 6: Final answer
    x = 485,873.55

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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.