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Finding the Fourth Proportional to 559,881.80, 839,822.70 and 307,064.60

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Solution

The fourth proportional to 559,881.80, 839,822.70 and 307,064.60 is: 460,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,881.80 : 839,822.70 = 307,064.60 : x
  2. Step 2: Convert to fraction form
    559,881.80/839,822.70 = 307,064.60/x
  3. Step 3: Cross multiply
    559,881.80x = 839,822.70 × 307,064.60
  4. Step 4: Simplify right side
    559,881.80x = 257,879,821,446.42
  5. Step 5: Solve for x
    x = 257,879,821,446.42/559,881.80
  6. Step 6: Final answer
    x = 460,596.90

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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.