Home / 328,288.77-453,124.53-213,881.40

Finding the Fourth Proportional to 328,288.77, 453,124.53 and 213,881.40

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Solution

The fourth proportional to 328,288.77, 453,124.53 and 213,881.40 is: 295,212.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,288.77 : 453,124.53 = 213,881.40 : x
  2. Step 2: Convert to fraction form
    328,288.77/453,124.53 = 213,881.40/x
  3. Step 3: Cross multiply
    328,288.77x = 453,124.53 × 213,881.40
  4. Step 4: Simplify right side
    328,288.77x = 96,914,908,850.74
  5. Step 5: Solve for x
    x = 96,914,908,850.74/328,288.77
  6. Step 6: Final answer
    x = 295,212.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.