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Finding the Fourth Proportional to 472,393,073.80, 708,589,610.70 and 435,085,915.60

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Solution

The fourth proportional to 472,393,073.80, 708,589,610.70 and 435,085,915.60 is: 652,628,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,073.80 : 708,589,610.70 = 435,085,915.60 : x
  2. Step 2: Convert to fraction form
    472,393,073.80/708,589,610.70 = 435,085,915.60/x
  3. Step 3: Cross multiply
    472,393,073.80x = 708,589,610.70 × 435,085,915.60
  4. Step 4: Simplify right side
    472,393,073.80x = 308,297,359,556,057,088
  5. Step 5: Solve for x
    x = 308,297,359,556,057,088/472,393,073.80
  6. Step 6: Final answer
    x = 652,628,873.40

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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.