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Finding the Fourth Proportional to 614,788.40, 922,182.60 and 414,021.80

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Solution

The fourth proportional to 614,788.40, 922,182.60 and 414,021.80 is: 621,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,788.40 : 922,182.60 = 414,021.80 : x
  2. Step 2: Convert to fraction form
    614,788.40/922,182.60 = 414,021.80/x
  3. Step 3: Cross multiply
    614,788.40x = 922,182.60 × 414,021.80
  4. Step 4: Simplify right side
    614,788.40x = 381,803,699,980.68
  5. Step 5: Solve for x
    x = 381,803,699,980.68/614,788.40
  6. Step 6: Final answer
    x = 621,032.70

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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.