Home / 717,185.34-989,723.07-394,925.36

Finding the Fourth Proportional to 717,185.34, 989,723.07 and 394,925.36

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Solution

The fourth proportional to 717,185.34, 989,723.07 and 394,925.36 is: 545,001.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,185.34 : 989,723.07 = 394,925.36 : x
  2. Step 2: Convert to fraction form
    717,185.34/989,723.07 = 394,925.36/x
  3. Step 3: Cross multiply
    717,185.34x = 989,723.07 × 394,925.36
  4. Step 4: Simplify right side
    717,185.34x = 390,866,734,771.44
  5. Step 5: Solve for x
    x = 390,866,734,771.44/717,185.34
  6. Step 6: Final answer
    x = 545,001.01

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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.