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Finding the Fourth Proportional to 1,563,165, 2,157,167.70 and 847,773

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Solution

The fourth proportional to 1,563,165, 2,157,167.70 and 847,773 is: 1,169,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563,165 : 2,157,167.70 = 847,773 : x
  2. Step 2: Convert to fraction form
    1,563,165/2,157,167.70 = 847,773/x
  3. Step 3: Cross multiply
    1,563,165x = 2,157,167.70 × 847,773
  4. Step 4: Simplify right side
    1,563,165x = 1,828,788,532,532.10
  5. Step 5: Solve for x
    x = 1,828,788,532,532.10/1,563,165
  6. Step 6: Final answer
    x = 1,169,926.74

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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.