Home / 914,188.80-1,261,566.72-511,795.20

Finding the Fourth Proportional to 914,188.80, 1,261,566.72 and 511,795.20

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Solution

The fourth proportional to 914,188.80, 1,261,566.72 and 511,795.20 is: 706,269.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,188.80 : 1,261,566.72 = 511,795.20 : x
  2. Step 2: Convert to fraction form
    914,188.80/1,261,566.72 = 511,795.20/x
  3. Step 3: Cross multiply
    914,188.80x = 1,261,566.72 × 511,795.20
  4. Step 4: Simplify right side
    914,188.80x = 645,663,791,775.74
  5. Step 5: Solve for x
    x = 645,663,791,775.74/914,188.80
  6. Step 6: Final answer
    x = 706,269.64

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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.