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Finding the Fourth Proportional to 993,878.60, 1,490,817.90 and 886,051.40

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Solution

The fourth proportional to 993,878.60, 1,490,817.90 and 886,051.40 is: 1,329,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,878.60 : 1,490,817.90 = 886,051.40 : x
  2. Step 2: Convert to fraction form
    993,878.60/1,490,817.90 = 886,051.40/x
  3. Step 3: Cross multiply
    993,878.60x = 1,490,817.90 × 886,051.40
  4. Step 4: Simplify right side
    993,878.60x = 1,320,941,287,440.06
  5. Step 5: Solve for x
    x = 1,320,941,287,440.06/993,878.60
  6. Step 6: Final answer
    x = 1,329,077.10

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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.