Home / 860,018.28-1,186,723.70-511,104.36

Finding the Fourth Proportional to 860,018.28, 1,186,723.70 and 511,104.36

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Solution

The fourth proportional to 860,018.28, 1,186,723.70 and 511,104.36 is: 705,263.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,018.28 : 1,186,723.70 = 511,104.36 : x
  2. Step 2: Convert to fraction form
    860,018.28/1,186,723.70 = 511,104.36/x
  3. Step 3: Cross multiply
    860,018.28x = 1,186,723.70 × 511,104.36
  4. Step 4: Simplify right side
    860,018.28x = 606,539,657,185.33
  5. Step 5: Solve for x
    x = 606,539,657,185.33/860,018.28
  6. Step 6: Final answer
    x = 705,263.68

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Double scale
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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.