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Finding the Fourth Proportional to 908,470.80, 1,361,539.80 and 697,060.80

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Solution

The fourth proportional to 908,470.80, 1,361,539.80 and 697,060.80 is: 1,044,696.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,470.80 : 1,361,539.80 = 697,060.80 : x
  2. Step 2: Convert to fraction form
    908,470.80/1,361,539.80 = 697,060.80/x
  3. Step 3: Cross multiply
    908,470.80x = 1,361,539.80 × 697,060.80
  4. Step 4: Simplify right side
    908,470.80x = 949,076,022,219.84
  5. Step 5: Solve for x
    x = 949,076,022,219.84/908,470.80
  6. Step 6: Final answer
    x = 1,044,696.23

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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.