Home / 634,569.60-875,464.56-405,135.48

Finding the Fourth Proportional to 634,569.60, 875,464.56 and 405,135.48

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Solution

The fourth proportional to 634,569.60, 875,464.56 and 405,135.48 is: 558,932.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,569.60 : 875,464.56 = 405,135.48 : x
  2. Step 2: Convert to fraction form
    634,569.60/875,464.56 = 405,135.48/x
  3. Step 3: Cross multiply
    634,569.60x = 875,464.56 × 405,135.48
  4. Step 4: Simplify right side
    634,569.60x = 354,681,754,738.59
  5. Step 5: Solve for x
    x = 354,681,754,738.59/634,569.60
  6. Step 6: Final answer
    x = 558,932.79

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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.