Home / 443,824.40-665,628.60-128,248.40

Finding the Fourth Proportional to 443,824.40, 665,628.60 and 128,248.40

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Solution

The fourth proportional to 443,824.40, 665,628.60 and 128,248.40 is: 192,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,824.40 : 665,628.60 = 128,248.40 : x
  2. Step 2: Convert to fraction form
    443,824.40/665,628.60 = 128,248.40/x
  3. Step 3: Cross multiply
    443,824.40x = 665,628.60 × 128,248.40
  4. Step 4: Simplify right side
    443,824.40x = 85,365,802,944.24
  5. Step 5: Solve for x
    x = 85,365,802,944.24/443,824.40
  6. Step 6: Final answer
    x = 192,341.39

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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.