Home / 591,986.34-817,015.95-388,208.70

Finding the Fourth Proportional to 591,986.34, 817,015.95 and 388,208.70

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Solution

The fourth proportional to 591,986.34, 817,015.95 and 388,208.70 is: 535,777.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,986.34 : 817,015.95 = 388,208.70 : x
  2. Step 2: Convert to fraction form
    591,986.34/817,015.95 = 388,208.70/x
  3. Step 3: Cross multiply
    591,986.34x = 817,015.95 × 388,208.70
  4. Step 4: Simplify right side
    591,986.34x = 317,172,699,828.77
  5. Step 5: Solve for x
    x = 317,172,699,828.77/591,986.34
  6. Step 6: Final answer
    x = 535,777.06

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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.