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Finding the Fourth Proportional to 1,803,176, 2,488,460.64 and 998,360

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Solution

The fourth proportional to 1,803,176, 2,488,460.64 and 998,360 is: 1,377,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803,176 : 2,488,460.64 = 998,360 : x
  2. Step 2: Convert to fraction form
    1,803,176/2,488,460.64 = 998,360/x
  3. Step 3: Cross multiply
    1,803,176x = 2,488,460.64 × 998,360
  4. Step 4: Simplify right side
    1,803,176x = 2,484,379,564,550.40
  5. Step 5: Solve for x
    x = 2,484,379,564,550.40/1,803,176
  6. Step 6: Final answer
    x = 1,377,779.85

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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.