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Finding the Fourth Proportional to 570,361,581.81, 854,068,934.52 and 393,644,018.70

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Solution

The fourth proportional to 570,361,581.81, 854,068,934.52 and 393,644,018.70 is: 589,449,111.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,361,581.81 : 854,068,934.52 = 393,644,018.70 : x
  2. Step 2: Convert to fraction form
    570,361,581.81/854,068,934.52 = 393,644,018.70/x
  3. Step 3: Cross multiply
    570,361,581.81x = 854,068,934.52 × 393,644,018.70
  4. Step 4: Simplify right side
    570,361,581.81x = 336,199,127,631,279,936
  5. Step 5: Solve for x
    x = 336,199,127,631,279,936/570,361,581.81
  6. Step 6: Final answer
    x = 589,449,111.50

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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.