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Finding the Fourth Proportional to 532,236,200.70, 798,354,301.05 and 388,908,968.70

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Solution

The fourth proportional to 532,236,200.70, 798,354,301.05 and 388,908,968.70 is: 583,363,453.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,236,200.70 : 798,354,301.05 = 388,908,968.70 : x
  2. Step 2: Convert to fraction form
    532,236,200.70/798,354,301.05 = 388,908,968.70/x
  3. Step 3: Cross multiply
    532,236,200.70x = 798,354,301.05 × 388,908,968.70
  4. Step 4: Simplify right side
    532,236,200.70x = 310,487,147,878,564,800
  5. Step 5: Solve for x
    x = 310,487,147,878,564,800/532,236,200.70
  6. Step 6: Final answer
    x = 583,363,453.05

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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.