Home / 386,528.66-579,783.45-149,871.40

Finding the Fourth Proportional to 386,528.66, 579,783.45 and 149,871.40

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Solution

The fourth proportional to 386,528.66, 579,783.45 and 149,871.40 is: 224,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,528.66 : 579,783.45 = 149,871.40 : x
  2. Step 2: Convert to fraction form
    386,528.66/579,783.45 = 149,871.40/x
  3. Step 3: Cross multiply
    386,528.66x = 579,783.45 × 149,871.40
  4. Step 4: Simplify right side
    386,528.66x = 86,892,956,460.89
  5. Step 5: Solve for x
    x = 86,892,956,460.89/386,528.66
  6. Step 6: Final answer
    x = 224,803.40

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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.