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Finding the Fourth Proportional to 691,534, 954,316.92 and 373,582

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Solution

The fourth proportional to 691,534, 954,316.92 and 373,582 is: 515,543.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,534 : 954,316.92 = 373,582 : x
  2. Step 2: Convert to fraction form
    691,534/954,316.92 = 373,582/x
  3. Step 3: Cross multiply
    691,534x = 954,316.92 × 373,582
  4. Step 4: Simplify right side
    691,534x = 356,515,623,607.44
  5. Step 5: Solve for x
    x = 356,515,623,607.44/691,534
  6. Step 6: Final answer
    x = 515,543.16

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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.