Home / 640,298.75-883,577.57-353,800.37

Finding the Fourth Proportional to 640,298.75, 883,577.57 and 353,800.37

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Solution

The fourth proportional to 640,298.75, 883,577.57 and 353,800.37 is: 488,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,298.75 : 883,577.57 = 353,800.37 : x
  2. Step 2: Convert to fraction form
    640,298.75/883,577.57 = 353,800.37/x
  3. Step 3: Cross multiply
    640,298.75x = 883,577.57 × 353,800.37
  4. Step 4: Simplify right side
    640,298.75x = 312,610,071,629.64
  5. Step 5: Solve for x
    x = 312,610,071,629.64/640,298.75
  6. Step 6: Final answer
    x = 488,225.34

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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.