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Finding the Fourth Proportional to 559,873,400.80, 839,810,101.20 and 556,472,178.40

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Solution

The fourth proportional to 559,873,400.80, 839,810,101.20 and 556,472,178.40 is: 834,708,267.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,873,400.80 : 839,810,101.20 = 556,472,178.40 : x
  2. Step 2: Convert to fraction form
    559,873,400.80/839,810,101.20 = 556,472,178.40/x
  3. Step 3: Cross multiply
    559,873,400.80x = 839,810,101.20 × 556,472,178.40
  4. Step 4: Simplify right side
    559,873,400.80x = 467,330,956,457,088,448
  5. Step 5: Solve for x
    x = 467,330,956,457,088,448/559,873,400.80
  6. Step 6: Final answer
    x = 834,708,267.60

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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.