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Finding the Fourth Proportional to 559,073.16, 771,499.90 and 341,645.40

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Solution

The fourth proportional to 559,073.16, 771,499.90 and 341,645.40 is: 471,457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,073.16 : 771,499.90 = 341,645.40 : x
  2. Step 2: Convert to fraction form
    559,073.16/771,499.90 = 341,645.40/x
  3. Step 3: Cross multiply
    559,073.16x = 771,499.90 × 341,645.40
  4. Step 4: Simplify right side
    559,073.16x = 263,579,391,935.46
  5. Step 5: Solve for x
    x = 263,579,391,935.46/559,073.16
  6. Step 6: Final answer
    x = 471,457.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.