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Finding the Fourth Proportional to 660,623.04, 911,671.81 and 374,202.59

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Solution

The fourth proportional to 660,623.04, 911,671.81 and 374,202.59 is: 516,406.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,623.04 : 911,671.81 = 374,202.59 : x
  2. Step 2: Convert to fraction form
    660,623.04/911,671.81 = 374,202.59/x
  3. Step 3: Cross multiply
    660,623.04x = 911,671.81 × 374,202.59
  4. Step 4: Simplify right side
    660,623.04x = 341,149,947,038.12
  5. Step 5: Solve for x
    x = 341,149,947,038.12/660,623.04
  6. Step 6: Final answer
    x = 516,406.37

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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.