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Finding the Fourth Proportional to 335,810.10, 503,715.15 and 316,110.90

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Solution

The fourth proportional to 335,810.10, 503,715.15 and 316,110.90 is: 474,166.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,810.10 : 503,715.15 = 316,110.90 : x
  2. Step 2: Convert to fraction form
    335,810.10/503,715.15 = 316,110.90/x
  3. Step 3: Cross multiply
    335,810.10x = 503,715.15 × 316,110.90
  4. Step 4: Simplify right side
    335,810.10x = 159,229,849,410.14
  5. Step 5: Solve for x
    x = 159,229,849,410.14/335,810.10
  6. Step 6: Final answer
    x = 474,166.35

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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.