Home / 1,289,017.70-1,933,624.95-390,533.85

Finding the Fourth Proportional to 1,289,017.70, 1,933,624.95 and 390,533.85

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Solution

The fourth proportional to 1,289,017.70, 1,933,624.95 and 390,533.85 is: 585,830.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,017.70 : 1,933,624.95 = 390,533.85 : x
  2. Step 2: Convert to fraction form
    1,289,017.70/1,933,624.95 = 390,533.85/x
  3. Step 3: Cross multiply
    1,289,017.70x = 1,933,624.95 × 390,533.85
  4. Step 4: Simplify right side
    1,289,017.70x = 755,145,996,179.56
  5. Step 5: Solve for x
    x = 755,145,996,179.56/1,289,017.70
  6. Step 6: Final answer
    x = 585,830.59

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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.