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Finding the Fourth Proportional to 614,856.60, 922,457.70 and 260,040.60

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Solution

The fourth proportional to 614,856.60, 922,457.70 and 260,040.60 is: 390,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,856.60 : 922,457.70 = 260,040.60 : x
  2. Step 2: Convert to fraction form
    614,856.60/922,457.70 = 260,040.60/x
  3. Step 3: Cross multiply
    614,856.60x = 922,457.70 × 260,040.60
  4. Step 4: Simplify right side
    614,856.60x = 239,876,453,782.62
  5. Step 5: Solve for x
    x = 239,876,453,782.62/614,856.60
  6. Step 6: Final answer
    x = 390,133.98

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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.