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Finding the Fourth Proportional to 435,670.65, 652,559.61 and 210,558.98

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Solution

The fourth proportional to 435,670.65, 652,559.61 and 210,558.98 is: 315,381.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,670.65 : 652,559.61 = 210,558.98 : x
  2. Step 2: Convert to fraction form
    435,670.65/652,559.61 = 210,558.98/x
  3. Step 3: Cross multiply
    435,670.65x = 652,559.61 × 210,558.98
  4. Step 4: Simplify right side
    435,670.65x = 137,402,282,608.00
  5. Step 5: Solve for x
    x = 137,402,282,608.00/435,670.65
  6. Step 6: Final answer
    x = 315,381.09

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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.