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Finding the Fourth Proportional to 652,641,793.50, 978,989,688.63 and 192,579,968.28

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Solution

The fourth proportional to 652,641,793.50, 978,989,688.63 and 192,579,968.28 is: 288,877,919.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,641,793.50 : 978,989,688.63 = 192,579,968.28 : x
  2. Step 2: Convert to fraction form
    652,641,793.50/978,989,688.63 = 192,579,968.28/x
  3. Step 3: Cross multiply
    652,641,793.50x = 978,989,688.63 × 192,579,968.28
  4. Step 4: Simplify right side
    652,641,793.50x = 188,533,803,182,812,480
  5. Step 5: Solve for x
    x = 188,533,803,182,812,480/652,641,793.50
  6. Step 6: Final answer
    x = 288,877,919.04

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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.