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Finding the Fourth Proportional to 652,892,557.20, 978,063,377.40 and 393,336,772.80

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Solution

The fourth proportional to 652,892,557.20, 978,063,377.40 and 393,336,772.80 is: 589,236,756.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,892,557.20 : 978,063,377.40 = 393,336,772.80 : x
  2. Step 2: Convert to fraction form
    652,892,557.20/978,063,377.40 = 393,336,772.80/x
  3. Step 3: Cross multiply
    652,892,557.20x = 978,063,377.40 × 393,336,772.80
  4. Step 4: Simplify right side
    652,892,557.20x = 384,708,292,460,384,448
  5. Step 5: Solve for x
    x = 384,708,292,460,384,448/652,892,557.20
  6. Step 6: Final answer
    x = 589,236,756.06

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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.