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Finding the Fourth Proportional to 553,199,883.80, 763,459,358.18 and 315,055,138.28

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Solution

The fourth proportional to 553,199,883.80, 763,459,358.18 and 315,055,138.28 is: 434,800,875.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,199,883.80 : 763,459,358.18 = 315,055,138.28 : x
  2. Step 2: Convert to fraction form
    553,199,883.80/763,459,358.18 = 315,055,138.28/x
  3. Step 3: Cross multiply
    553,199,883.80x = 763,459,358.18 × 315,055,138.28
  4. Step 4: Simplify right side
    553,199,883.80x = 240,531,793,662,559,904
  5. Step 5: Solve for x
    x = 240,531,793,662,559,904/553,199,883.80
  6. Step 6: Final answer
    x = 434,800,875.25

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