Home / 711,180.80-1,066,771.20-657,113.60

Finding the Fourth Proportional to 711,180.80, 1,066,771.20 and 657,113.60

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Solution

The fourth proportional to 711,180.80, 1,066,771.20 and 657,113.60 is: 985,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,180.80 : 1,066,771.20 = 657,113.60 : x
  2. Step 2: Convert to fraction form
    711,180.80/1,066,771.20 = 657,113.60/x
  3. Step 3: Cross multiply
    711,180.80x = 1,066,771.20 × 657,113.60
  4. Step 4: Simplify right side
    711,180.80x = 700,989,863,608.32
  5. Step 5: Solve for x
    x = 700,989,863,608.32/711,180.80
  6. Step 6: Final answer
    x = 985,670.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.