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Finding the Fourth Proportional to 353,670.70, 530,506.05 and 283,686.70

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Solution

The fourth proportional to 353,670.70, 530,506.05 and 283,686.70 is: 425,530.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,670.70 : 530,506.05 = 283,686.70 : x
  2. Step 2: Convert to fraction form
    353,670.70/530,506.05 = 283,686.70/x
  3. Step 3: Cross multiply
    353,670.70x = 530,506.05 × 283,686.70
  4. Step 4: Simplify right side
    353,670.70x = 150,497,510,654.54
  5. Step 5: Solve for x
    x = 150,497,510,654.54/353,670.70
  6. Step 6: Final answer
    x = 425,530.05

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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.