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Finding the Fourth Proportional to 750,907.30, 1,125,862.80 and 414,109.30

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Solution

The fourth proportional to 750,907.30, 1,125,862.80 and 414,109.30 is: 620,889.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,907.30 : 1,125,862.80 = 414,109.30 : x
  2. Step 2: Convert to fraction form
    750,907.30/1,125,862.80 = 414,109.30/x
  3. Step 3: Cross multiply
    750,907.30x = 1,125,862.80 × 414,109.30
  4. Step 4: Simplify right side
    750,907.30x = 466,230,256,004.04
  5. Step 5: Solve for x
    x = 466,230,256,004.04/750,907.30
  6. Step 6: Final answer
    x = 620,889.23

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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.