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Finding the Fourth Proportional to 1,831,405.65, 2,746,734.38 and 693,775.64

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Solution

The fourth proportional to 1,831,405.65, 2,746,734.38 and 693,775.64 is: 1,040,521.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831,405.65 : 2,746,734.38 = 693,775.64 : x
  2. Step 2: Convert to fraction form
    1,831,405.65/2,746,734.38 = 693,775.64/x
  3. Step 3: Cross multiply
    1,831,405.65x = 2,746,734.38 × 693,775.64
  4. Step 4: Simplify right side
    1,831,405.65x = 1,905,617,402,394.50
  5. Step 5: Solve for x
    x = 1,905,617,402,394.50/1,831,405.65
  6. Step 6: Final answer
    x = 1,040,521.74

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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.