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Finding the Fourth Proportional to 1,868,835.78, 2,803,904.22 and 589,640.76

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Solution

The fourth proportional to 1,868,835.78, 2,803,904.22 and 589,640.76 is: 884,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,835.78 : 2,803,904.22 = 589,640.76 : x
  2. Step 2: Convert to fraction form
    1,868,835.78/2,803,904.22 = 589,640.76/x
  3. Step 3: Cross multiply
    1,868,835.78x = 2,803,904.22 × 589,640.76
  4. Step 4: Simplify right side
    1,868,835.78x = 1,653,296,215,248.01
  5. Step 5: Solve for x
    x = 1,653,296,215,248.01/1,868,835.78
  6. Step 6: Final answer
    x = 884,666.40

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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.