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Finding the Fourth Proportional to 384,754.29, 574,313.93 and 339,303.83

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Solution

The fourth proportional to 384,754.29, 574,313.93 and 339,303.83 is: 506,471.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,754.29 : 574,313.93 = 339,303.83 : x
  2. Step 2: Convert to fraction form
    384,754.29/574,313.93 = 339,303.83/x
  3. Step 3: Cross multiply
    384,754.29x = 574,313.93 × 339,303.83
  4. Step 4: Simplify right side
    384,754.29x = 194,866,911,503.26
  5. Step 5: Solve for x
    x = 194,866,911,503.26/384,754.29
  6. Step 6: Final answer
    x = 506,471.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.