Home / 421,036.11-581,022.99-230,045.40

Finding the Fourth Proportional to 421,036.11, 581,022.99 and 230,045.40

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Solution

The fourth proportional to 421,036.11, 581,022.99 and 230,045.40 is: 317,458.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,036.11 : 581,022.99 = 230,045.40 : x
  2. Step 2: Convert to fraction form
    421,036.11/581,022.99 = 230,045.40/x
  3. Step 3: Cross multiply
    421,036.11x = 581,022.99 × 230,045.40
  4. Step 4: Simplify right side
    421,036.11x = 133,661,666,143.75
  5. Step 5: Solve for x
    x = 133,661,666,143.75/421,036.11
  6. Step 6: Final answer
    x = 317,458.91

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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.