Home / 438,946.60-657,966.30-238,844.20

Finding the Fourth Proportional to 438,946.60, 657,966.30 and 238,844.20

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Solution

The fourth proportional to 438,946.60, 657,966.30 and 238,844.20 is: 358,019.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,946.60 : 657,966.30 = 238,844.20 : x
  2. Step 2: Convert to fraction form
    438,946.60/657,966.30 = 238,844.20/x
  3. Step 3: Cross multiply
    438,946.60x = 657,966.30 × 238,844.20
  4. Step 4: Simplify right side
    438,946.60x = 157,151,434,550.46
  5. Step 5: Solve for x
    x = 157,151,434,550.46/438,946.60
  6. Step 6: Final answer
    x = 358,019.48

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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.