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Finding the Fourth Proportional to 326,032,336.90, 489,048,505.35 and 326,032,336.90

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Solution

The fourth proportional to 326,032,336.90, 489,048,505.35 and 326,032,336.90 is: 489,048,505.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,032,336.90 : 489,048,505.35 = 326,032,336.90 : x
  2. Step 2: Convert to fraction form
    326,032,336.90/489,048,505.35 = 326,032,336.90/x
  3. Step 3: Cross multiply
    326,032,336.90x = 489,048,505.35 × 326,032,336.90
  4. Step 4: Simplify right side
    326,032,336.90x = 159,445,627,056,712,640
  5. Step 5: Solve for x
    x = 159,445,627,056,712,640/326,032,336.90
  6. Step 6: Final answer
    x = 489,048,505.35

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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.