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Finding the Fourth Proportional to 553,351.70, 830,027.55 and 530,023.70

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Solution

The fourth proportional to 553,351.70, 830,027.55 and 530,023.70 is: 795,035.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,351.70 : 830,027.55 = 530,023.70 : x
  2. Step 2: Convert to fraction form
    553,351.70/830,027.55 = 530,023.70/x
  3. Step 3: Cross multiply
    553,351.70x = 830,027.55 × 530,023.70
  4. Step 4: Simplify right side
    553,351.70x = 439,934,273,152.94
  5. Step 5: Solve for x
    x = 439,934,273,152.94/553,351.70
  6. Step 6: Final answer
    x = 795,035.55

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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.