Home / 717,534.41-990,192.88-395,237.03

Finding the Fourth Proportional to 717,534.41, 990,192.88 and 395,237.03

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Solution

The fourth proportional to 717,534.41, 990,192.88 and 395,237.03 is: 545,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,534.41 : 990,192.88 = 395,237.03 : x
  2. Step 2: Convert to fraction form
    717,534.41/990,192.88 = 395,237.03/x
  3. Step 3: Cross multiply
    717,534.41x = 990,192.88 × 395,237.03
  4. Step 4: Simplify right side
    717,534.41x = 391,360,893,018.35
  5. Step 5: Solve for x
    x = 391,360,893,018.35/717,534.41
  6. Step 6: Final answer
    x = 545,424.56

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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.