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Finding the Fourth Proportional to 1,859,337.85, 2,788,931.78 and 948,500.34

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Solution

The fourth proportional to 1,859,337.85, 2,788,931.78 and 948,500.34 is: 1,422,712.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859,337.85 : 2,788,931.78 = 948,500.34 : x
  2. Step 2: Convert to fraction form
    1,859,337.85/2,788,931.78 = 948,500.34/x
  3. Step 3: Cross multiply
    1,859,337.85x = 2,788,931.78 × 948,500.34
  4. Step 4: Simplify right side
    1,859,337.85x = 2,645,302,727,622.15
  5. Step 5: Solve for x
    x = 2,645,302,727,622.15/1,859,337.85
  6. Step 6: Final answer
    x = 1,422,712.25

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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.