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Finding the Fourth Proportional to 1,223,802.60, 1,834,974.90 and 750,827.40

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Solution

The fourth proportional to 1,223,802.60, 1,834,974.90 and 750,827.40 is: 1,125,793.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,802.60 : 1,834,974.90 = 750,827.40 : x
  2. Step 2: Convert to fraction form
    1,223,802.60/1,834,974.90 = 750,827.40/x
  3. Step 3: Cross multiply
    1,223,802.60x = 1,834,974.90 × 750,827.40
  4. Step 4: Simplify right side
    1,223,802.60x = 1,377,749,433,232.26
  5. Step 5: Solve for x
    x = 1,377,749,433,232.26/1,223,802.60
  6. Step 6: Final answer
    x = 1,125,793.84

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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.