Home / 438,196.60-657,246.30-122,685.40

Finding the Fourth Proportional to 438,196.60, 657,246.30 and 122,685.40

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Solution

The fourth proportional to 438,196.60, 657,246.30 and 122,685.40 is: 184,014.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,196.60 : 657,246.30 = 122,685.40 : x
  2. Step 2: Convert to fraction form
    438,196.60/657,246.30 = 122,685.40/x
  3. Step 3: Cross multiply
    438,196.60x = 657,246.30 × 122,685.40
  4. Step 4: Simplify right side
    438,196.60x = 80,634,525,214.02
  5. Step 5: Solve for x
    x = 80,634,525,214.02/438,196.60
  6. Step 6: Final answer
    x = 184,014.49

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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.