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Finding the Fourth Proportional to 654,856,981.83, 903,698,037.70 and 357,499,224

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Solution

The fourth proportional to 654,856,981.83, 903,698,037.70 and 357,499,224 is: 493,346,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,856,981.83 : 903,698,037.70 = 357,499,224 : x
  2. Step 2: Convert to fraction form
    654,856,981.83/903,698,037.70 = 357,499,224/x
  3. Step 3: Cross multiply
    654,856,981.83x = 903,698,037.70 × 357,499,224
  4. Step 4: Simplify right side
    654,856,981.83x = 323,071,347,207,179,008
  5. Step 5: Solve for x
    x = 323,071,347,207,179,008/654,856,981.83
  6. Step 6: Final answer
    x = 493,346,419.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.