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Finding the Fourth Proportional to 473,535.60, 709,525.80 and 394,220.40

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Solution

The fourth proportional to 473,535.60, 709,525.80 and 394,220.40 is: 590,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,535.60 : 709,525.80 = 394,220.40 : x
  2. Step 2: Convert to fraction form
    473,535.60/709,525.80 = 394,220.40/x
  3. Step 3: Cross multiply
    473,535.60x = 709,525.80 × 394,220.40
  4. Step 4: Simplify right side
    473,535.60x = 279,709,544,686.32
  5. Step 5: Solve for x
    x = 279,709,544,686.32/473,535.60
  6. Step 6: Final answer
    x = 590,683.24

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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.