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Finding the Fourth Proportional to 1,859,583.15, 2,788,062.53 and 849,189.15

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Solution

The fourth proportional to 1,859,583.15, 2,788,062.53 and 849,189.15 is: 1,273,184.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859,583.15 : 2,788,062.53 = 849,189.15 : x
  2. Step 2: Convert to fraction form
    1,859,583.15/2,788,062.53 = 849,189.15/x
  3. Step 3: Cross multiply
    1,859,583.15x = 2,788,062.53 × 849,189.15
  4. Step 4: Simplify right side
    1,859,583.15x = 2,367,592,445,751.60
  5. Step 5: Solve for x
    x = 2,367,592,445,751.60/1,859,583.15
  6. Step 6: Final answer
    x = 1,273,184.50

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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.