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Finding the Fourth Proportional to 1,167,005, 1,610,466.90 and 630,461

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Solution

The fourth proportional to 1,167,005, 1,610,466.90 and 630,461 is: 870,036.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,005 : 1,610,466.90 = 630,461 : x
  2. Step 2: Convert to fraction form
    1,167,005/1,610,466.90 = 630,461/x
  3. Step 3: Cross multiply
    1,167,005x = 1,610,466.90 × 630,461
  4. Step 4: Simplify right side
    1,167,005x = 1,015,336,572,240.90
  5. Step 5: Solve for x
    x = 1,015,336,572,240.90/1,167,005
  6. Step 6: Final answer
    x = 870,036.18

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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.