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Finding the Fourth Proportional to 875,774.90, 1,313,662.35 and 804,916.10

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Solution

The fourth proportional to 875,774.90, 1,313,662.35 and 804,916.10 is: 1,207,374.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,774.90 : 1,313,662.35 = 804,916.10 : x
  2. Step 2: Convert to fraction form
    875,774.90/1,313,662.35 = 804,916.10/x
  3. Step 3: Cross multiply
    875,774.90x = 1,313,662.35 × 804,916.10
  4. Step 4: Simplify right side
    875,774.90x = 1,057,387,975,478.84
  5. Step 5: Solve for x
    x = 1,057,387,975,478.84/875,774.90
  6. Step 6: Final answer
    x = 1,207,374.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.