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Finding the Fourth Proportional to 590,492,712.40, 885,739,068.60 and 245,693,791.60

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Solution

The fourth proportional to 590,492,712.40, 885,739,068.60 and 245,693,791.60 is: 368,540,687.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,492,712.40 : 885,739,068.60 = 245,693,791.60 : x
  2. Step 2: Convert to fraction form
    590,492,712.40/885,739,068.60 = 245,693,791.60/x
  3. Step 3: Cross multiply
    590,492,712.40x = 885,739,068.60 × 245,693,791.60
  4. Step 4: Simplify right side
    590,492,712.40x = 217,620,590,132,586,496
  5. Step 5: Solve for x
    x = 217,620,590,132,586,496/590,492,712.40
  6. Step 6: Final answer
    x = 368,540,687.40

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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.