Home / 386,656.40-579,984.60-200,032.40

Finding the Fourth Proportional to 386,656.40, 579,984.60 and 200,032.40

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Solution

The fourth proportional to 386,656.40, 579,984.60 and 200,032.40 is: 300,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,656.40 : 579,984.60 = 200,032.40 : x
  2. Step 2: Convert to fraction form
    386,656.40/579,984.60 = 200,032.40/x
  3. Step 3: Cross multiply
    386,656.40x = 579,984.60 × 200,032.40
  4. Step 4: Simplify right side
    386,656.40x = 116,015,711,501.04
  5. Step 5: Solve for x
    x = 116,015,711,501.04/386,656.40
  6. Step 6: Final answer
    x = 300,048.60

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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.