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Finding the Fourth Proportional to 553,011.32, 828,745.83 and 417,964.52

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Solution

The fourth proportional to 553,011.32, 828,745.83 and 417,964.52 is: 626,363.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,011.32 : 828,745.83 = 417,964.52 : x
  2. Step 2: Convert to fraction form
    553,011.32/828,745.83 = 417,964.52/x
  3. Step 3: Cross multiply
    553,011.32x = 828,745.83 × 417,964.52
  4. Step 4: Simplify right side
    553,011.32x = 346,386,355,109.82
  5. Step 5: Solve for x
    x = 346,386,355,109.82/553,011.32
  6. Step 6: Final answer
    x = 626,363.95

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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.