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Finding the Fourth Proportional to 708,593,335.80, 1,062,890,003.70 and 513,448,200.60

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Solution

The fourth proportional to 708,593,335.80, 1,062,890,003.70 and 513,448,200.60 is: 770,172,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,593,335.80 : 1,062,890,003.70 = 513,448,200.60 : x
  2. Step 2: Convert to fraction form
    708,593,335.80/1,062,890,003.70 = 513,448,200.60/x
  3. Step 3: Cross multiply
    708,593,335.80x = 1,062,890,003.70 × 513,448,200.60
  4. Step 4: Simplify right side
    708,593,335.80x = 545,738,959,835,492,416
  5. Step 5: Solve for x
    x = 545,738,959,835,492,416/708,593,335.80
  6. Step 6: Final answer
    x = 770,172,300.90

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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.