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Finding the Fourth Proportional to 590,490,673.80, 885,736,010.70 and 437,435,665.80

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Solution

The fourth proportional to 590,490,673.80, 885,736,010.70 and 437,435,665.80 is: 656,153,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,490,673.80 : 885,736,010.70 = 437,435,665.80 : x
  2. Step 2: Convert to fraction form
    590,490,673.80/885,736,010.70 = 437,435,665.80/x
  3. Step 3: Cross multiply
    590,490,673.80x = 885,736,010.70 × 437,435,665.80
  4. Step 4: Simplify right side
    590,490,673.80x = 387,452,521,563,590,464
  5. Step 5: Solve for x
    x = 387,452,521,563,590,464/590,490,673.80
  6. Step 6: Final answer
    x = 656,153,498.70

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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.