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Finding the Fourth Proportional to 366,912,071.60, 550,368,107.40 and 338,851,986.80

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Solution

The fourth proportional to 366,912,071.60, 550,368,107.40 and 338,851,986.80 is: 508,277,980.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,912,071.60 : 550,368,107.40 = 338,851,986.80 : x
  2. Step 2: Convert to fraction form
    366,912,071.60/550,368,107.40 = 338,851,986.80/x
  3. Step 3: Cross multiply
    366,912,071.60x = 550,368,107.40 × 338,851,986.80
  4. Step 4: Simplify right side
    366,912,071.60x = 186,493,326,663,845,792
  5. Step 5: Solve for x
    x = 186,493,326,663,845,792/366,912,071.60
  6. Step 6: Final answer
    x = 508,277,980.20

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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.