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Finding the Fourth Proportional to 739,158.94, 1,019,978.25 and 416,948.23

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Solution

The fourth proportional to 739,158.94, 1,019,978.25 and 416,948.23 is: 575,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,158.94 : 1,019,978.25 = 416,948.23 : x
  2. Step 2: Convert to fraction form
    739,158.94/1,019,978.25 = 416,948.23/x
  3. Step 3: Cross multiply
    739,158.94x = 1,019,978.25 × 416,948.23
  4. Step 4: Simplify right side
    739,158.94x = 425,278,125,976.00
  5. Step 5: Solve for x
    x = 425,278,125,976.00/739,158.94
  6. Step 6: Final answer
    x = 575,354.10

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1.5x scale

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.