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Finding the Fourth Proportional to 607,563.60, 911,345.40 and 371,367.60

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Solution

The fourth proportional to 607,563.60, 911,345.40 and 371,367.60 is: 557,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,563.60 : 911,345.40 = 371,367.60 : x
  2. Step 2: Convert to fraction form
    607,563.60/911,345.40 = 371,367.60/x
  3. Step 3: Cross multiply
    607,563.60x = 911,345.40 × 371,367.60
  4. Step 4: Simplify right side
    607,563.60x = 338,444,153,969.04
  5. Step 5: Solve for x
    x = 338,444,153,969.04/607,563.60
  6. Step 6: Final answer
    x = 557,051.40

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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.