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Finding the Fourth Proportional to 480,580,920.80, 674,343,839.20 and 480,580,920.80

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Solution

The fourth proportional to 480,580,920.80, 674,343,839.20 and 480,580,920.80 is: 674,343,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,580,920.80 : 674,343,839.20 = 480,580,920.80 : x
  2. Step 2: Convert to fraction form
    480,580,920.80/674,343,839.20 = 480,580,920.80/x
  3. Step 3: Cross multiply
    480,580,920.80x = 674,343,839.20 × 480,580,920.80
  4. Step 4: Simplify right side
    480,580,920.80x = 324,076,783,178,543,168
  5. Step 5: Solve for x
    x = 324,076,783,178,543,168/480,580,920.80
  6. Step 6: Final answer
    x = 674,343,839.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.