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Finding the Fourth Proportional to 702,612.80, 1,051,586.40 and 702,612.80

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Solution

The fourth proportional to 702,612.80, 1,051,586.40 and 702,612.80 is: 1,051,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,612.80 : 1,051,586.40 = 702,612.80 : x
  2. Step 2: Convert to fraction form
    702,612.80/1,051,586.40 = 702,612.80/x
  3. Step 3: Cross multiply
    702,612.80x = 1,051,586.40 × 702,612.80
  4. Step 4: Simplify right side
    702,612.80x = 738,858,064,945.92
  5. Step 5: Solve for x
    x = 738,858,064,945.92/702,612.80
  6. Step 6: Final answer
    x = 1,051,586.40

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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.