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Finding the Fourth Proportional to 713,095.20, 1,069,642.80 and 554,464.80

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Solution

The fourth proportional to 713,095.20, 1,069,642.80 and 554,464.80 is: 831,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,095.20 : 1,069,642.80 = 554,464.80 : x
  2. Step 2: Convert to fraction form
    713,095.20/1,069,642.80 = 554,464.80/x
  3. Step 3: Cross multiply
    713,095.20x = 1,069,642.80 × 554,464.80
  4. Step 4: Simplify right side
    713,095.20x = 593,079,281,173.44
  5. Step 5: Solve for x
    x = 593,079,281,173.44/713,095.20
  6. Step 6: Final answer
    x = 831,697.20

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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.