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Finding the Fourth Proportional to 326,602.88, 489,904.32 and 105,004.16

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Solution

The fourth proportional to 326,602.88, 489,904.32 and 105,004.16 is: 157,506.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,602.88 : 489,904.32 = 105,004.16 : x
  2. Step 2: Convert to fraction form
    326,602.88/489,904.32 = 105,004.16/x
  3. Step 3: Cross multiply
    326,602.88x = 489,904.32 × 105,004.16
  4. Step 4: Simplify right side
    326,602.88x = 51,441,991,601.97
  5. Step 5: Solve for x
    x = 51,441,991,601.97/326,602.88
  6. Step 6: Final answer
    x = 157,506.24

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1.5x scale

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.