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Finding the Fourth Proportional to 1,017,834.60, 1,526,751.90 and 930,743.40

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Solution

The fourth proportional to 1,017,834.60, 1,526,751.90 and 930,743.40 is: 1,396,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017,834.60 : 1,526,751.90 = 930,743.40 : x
  2. Step 2: Convert to fraction form
    1,017,834.60/1,526,751.90 = 930,743.40/x
  3. Step 3: Cross multiply
    1,017,834.60x = 1,526,751.90 × 930,743.40
  4. Step 4: Simplify right side
    1,017,834.60x = 1,421,014,254,362.46
  5. Step 5: Solve for x
    x = 1,421,014,254,362.46/1,017,834.60
  6. Step 6: Final answer
    x = 1,396,115.10

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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.