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Finding the Fourth Proportional to 559,491.60, 839,237.40 and 470,918.10

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Solution

The fourth proportional to 559,491.60, 839,237.40 and 470,918.10 is: 706,377.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,491.60 : 839,237.40 = 470,918.10 : x
  2. Step 2: Convert to fraction form
    559,491.60/839,237.40 = 470,918.10/x
  3. Step 3: Cross multiply
    559,491.60x = 839,237.40 × 470,918.10
  4. Step 4: Simplify right side
    559,491.60x = 395,212,081,856.94
  5. Step 5: Solve for x
    x = 395,212,081,856.94/559,491.60
  6. Step 6: Final answer
    x = 706,377.15

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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.