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Finding the Fourth Proportional to 674,503.77, 930,817.62 and 368,580.15

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Solution

The fourth proportional to 674,503.77, 930,817.62 and 368,580.15 is: 508,641.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,503.77 : 930,817.62 = 368,580.15 : x
  2. Step 2: Convert to fraction form
    674,503.77/930,817.62 = 368,580.15/x
  3. Step 3: Cross multiply
    674,503.77x = 930,817.62 × 368,580.15
  4. Step 4: Simplify right side
    674,503.77x = 343,080,898,002.24
  5. Step 5: Solve for x
    x = 343,080,898,002.24/674,503.77
  6. Step 6: Final answer
    x = 508,641.93

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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.