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Finding the Fourth Proportional to 356,607.36, 531,722.88 and 346,809.60

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Solution

The fourth proportional to 356,607.36, 531,722.88 and 346,809.60 is: 517,113.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,607.36 : 531,722.88 = 346,809.60 : x
  2. Step 2: Convert to fraction form
    356,607.36/531,722.88 = 346,809.60/x
  3. Step 3: Cross multiply
    356,607.36x = 531,722.88 × 346,809.60
  4. Step 4: Simplify right side
    356,607.36x = 184,406,599,323.65
  5. Step 5: Solve for x
    x = 184,406,599,323.65/356,607.36
  6. Step 6: Final answer
    x = 517,113.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.