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Finding the Fourth Proportional to 326,047.40, 489,071.10 and 294,554.60

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Solution

The fourth proportional to 326,047.40, 489,071.10 and 294,554.60 is: 441,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,047.40 : 489,071.10 = 294,554.60 : x
  2. Step 2: Convert to fraction form
    326,047.40/489,071.10 = 294,554.60/x
  3. Step 3: Cross multiply
    326,047.40x = 489,071.10 × 294,554.60
  4. Step 4: Simplify right side
    326,047.40x = 144,058,142,232.06
  5. Step 5: Solve for x
    x = 144,058,142,232.06/326,047.40
  6. Step 6: Final answer
    x = 441,831.90

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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.