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Finding the Fourth Proportional to 610,890.94, 840,040.04 and 530,178.34

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Solution

The fourth proportional to 610,890.94, 840,040.04 and 530,178.34 is: 729,051.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,890.94 : 840,040.04 = 530,178.34 : x
  2. Step 2: Convert to fraction form
    610,890.94/840,040.04 = 530,178.34/x
  3. Step 3: Cross multiply
    610,890.94x = 840,040.04 × 530,178.34
  4. Step 4: Simplify right side
    610,890.94x = 445,371,033,940.73
  5. Step 5: Solve for x
    x = 445,371,033,940.73/610,890.94
  6. Step 6: Final answer
    x = 729,051.63

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1.5x scale

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.