Home / 872,303.60-1,308,455.40-451,708.40

Finding the Fourth Proportional to 872,303.60, 1,308,455.40 and 451,708.40

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Solution

The fourth proportional to 872,303.60, 1,308,455.40 and 451,708.40 is: 677,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,303.60 : 1,308,455.40 = 451,708.40 : x
  2. Step 2: Convert to fraction form
    872,303.60/1,308,455.40 = 451,708.40/x
  3. Step 3: Cross multiply
    872,303.60x = 1,308,455.40 × 451,708.40
  4. Step 4: Simplify right side
    872,303.60x = 591,040,295,205.36
  5. Step 5: Solve for x
    x = 591,040,295,205.36/872,303.60
  6. Step 6: Final answer
    x = 677,562.60

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1.5x scale

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.