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Finding the Fourth Proportional to 530,696.55, 732,313.13 and 315,801.93

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Solution

The fourth proportional to 530,696.55, 732,313.13 and 315,801.93 is: 435,778.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,696.55 : 732,313.13 = 315,801.93 : x
  2. Step 2: Convert to fraction form
    530,696.55/732,313.13 = 315,801.93/x
  3. Step 3: Cross multiply
    530,696.55x = 732,313.13 × 315,801.93
  4. Step 4: Simplify right side
    530,696.55x = 231,265,898,239.33
  5. Step 5: Solve for x
    x = 231,265,898,239.33/530,696.55
  6. Step 6: Final answer
    x = 435,778.03

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Why These Related Problems?

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