Home / 395,300.23-545,510.52-214,007.45

Finding the Fourth Proportional to 395,300.23, 545,510.52 and 214,007.45

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Solution

The fourth proportional to 395,300.23, 545,510.52 and 214,007.45 is: 295,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,300.23 : 545,510.52 = 214,007.45 : x
  2. Step 2: Convert to fraction form
    395,300.23/545,510.52 = 214,007.45/x
  3. Step 3: Cross multiply
    395,300.23x = 545,510.52 × 214,007.45
  4. Step 4: Simplify right side
    395,300.23x = 116,743,312,605.82
  5. Step 5: Solve for x
    x = 116,743,312,605.82/395,300.23
  6. Step 6: Final answer
    x = 295,328.22

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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.