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Finding the Fourth Proportional to 346,722.70, 520,084.05 and 283,737.10

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Solution

The fourth proportional to 346,722.70, 520,084.05 and 283,737.10 is: 425,605.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,722.70 : 520,084.05 = 283,737.10 : x
  2. Step 2: Convert to fraction form
    346,722.70/520,084.05 = 283,737.10/x
  3. Step 3: Cross multiply
    346,722.70x = 520,084.05 × 283,737.10
  4. Step 4: Simplify right side
    346,722.70x = 147,567,140,103.26
  5. Step 5: Solve for x
    x = 147,567,140,103.26/346,722.70
  6. Step 6: Final answer
    x = 425,605.65

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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.