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Finding the Fourth Proportional to 590,980,694.40, 886,471,041.60 and 397,488,931.20

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Solution

The fourth proportional to 590,980,694.40, 886,471,041.60 and 397,488,931.20 is: 596,233,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,980,694.40 : 886,471,041.60 = 397,488,931.20 : x
  2. Step 2: Convert to fraction form
    590,980,694.40/886,471,041.60 = 397,488,931.20/x
  3. Step 3: Cross multiply
    590,980,694.40x = 886,471,041.60 × 397,488,931.20
  4. Step 4: Simplify right side
    590,980,694.40x = 352,362,426,865,334,720
  5. Step 5: Solve for x
    x = 352,362,426,865,334,720/590,980,694.40
  6. Step 6: Final answer
    x = 596,233,396.80

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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.