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Finding the Fourth Proportional to 607,289.40, 910,955.70 and 186,564.60

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Solution

The fourth proportional to 607,289.40, 910,955.70 and 186,564.60 is: 279,853.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,289.40 : 910,955.70 = 186,564.60 : x
  2. Step 2: Convert to fraction form
    607,289.40/910,955.70 = 186,564.60/x
  3. Step 3: Cross multiply
    607,289.40x = 910,955.70 × 186,564.60
  4. Step 4: Simplify right side
    607,289.40x = 169,952,085,788.22
  5. Step 5: Solve for x
    x = 169,952,085,788.22/607,289.40
  6. Step 6: Final answer
    x = 279,853.54

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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.