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Finding the Fourth Proportional to 326,564.40, 489,846.60 and 242,583.60

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Solution

The fourth proportional to 326,564.40, 489,846.60 and 242,583.60 is: 363,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,564.40 : 489,846.60 = 242,583.60 : x
  2. Step 2: Convert to fraction form
    326,564.40/489,846.60 = 242,583.60/x
  3. Step 3: Cross multiply
    326,564.40x = 489,846.60 × 242,583.60
  4. Step 4: Simplify right side
    326,564.40x = 118,828,751,675.76
  5. Step 5: Solve for x
    x = 118,828,751,675.76/326,564.40
  6. Step 6: Final answer
    x = 363,875.40

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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.