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Finding the Fourth Proportional to 650,303,866.66, 897,420,224.68 and 352,946,113.40

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Solution

The fourth proportional to 650,303,866.66, 897,420,224.68 and 352,946,113.40 is: 487,066,118.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,303,866.66 : 897,420,224.68 = 352,946,113.40 : x
  2. Step 2: Convert to fraction form
    650,303,866.66/897,420,224.68 = 352,946,113.40/x
  3. Step 3: Cross multiply
    650,303,866.66x = 897,420,224.68 × 352,946,113.40
  4. Step 4: Simplify right side
    650,303,866.66x = 316,740,980,387,360,704
  5. Step 5: Solve for x
    x = 316,740,980,387,360,704/650,303,866.66
  6. Step 6: Final answer
    x = 487,066,118.82

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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.