Home / 639,023.60-881,852.64-352,544.36

Finding the Fourth Proportional to 639,023.60, 881,852.64 and 352,544.36

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Solution

The fourth proportional to 639,023.60, 881,852.64 and 352,544.36 is: 486,511.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,023.60 : 881,852.64 = 352,544.36 : x
  2. Step 2: Convert to fraction form
    639,023.60/881,852.64 = 352,544.36/x
  3. Step 3: Cross multiply
    639,023.60x = 881,852.64 × 352,544.36
  4. Step 4: Simplify right side
    639,023.60x = 310,892,174,583.11
  5. Step 5: Solve for x
    x = 310,892,174,583.11/639,023.60
  6. Step 6: Final answer
    x = 486,511.26

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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.