Home / 630,441.60-869,977.44-343,959.36

Finding the Fourth Proportional to 630,441.60, 869,977.44 and 343,959.36

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Solution

The fourth proportional to 630,441.60, 869,977.44 and 343,959.36 is: 474,646.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,441.60 : 869,977.44 = 343,959.36 : x
  2. Step 2: Convert to fraction form
    630,441.60/869,977.44 = 343,959.36/x
  3. Step 3: Cross multiply
    630,441.60x = 869,977.44 × 343,959.36
  4. Step 4: Simplify right side
    630,441.60x = 299,236,883,476.84
  5. Step 5: Solve for x
    x = 299,236,883,476.84/630,441.60
  6. Step 6: Final answer
    x = 474,646.48

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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.