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Finding the Fourth Proportional to 674,374.10, 930,608.73 and 368,461.08

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Solution

The fourth proportional to 674,374.10, 930,608.73 and 368,461.08 is: 508,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,374.10 : 930,608.73 = 368,461.08 : x
  2. Step 2: Convert to fraction form
    674,374.10/930,608.73 = 368,461.08/x
  3. Step 3: Cross multiply
    674,374.10x = 930,608.73 × 368,461.08
  4. Step 4: Simplify right side
    674,374.10x = 342,893,097,713.23
  5. Step 5: Solve for x
    x = 342,893,097,713.23/674,374.10
  6. Step 6: Final answer
    x = 508,461.25

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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.