Home / 768,839.58-1,060,807.59-666,701.82

Finding the Fourth Proportional to 768,839.58, 1,060,807.59 and 666,701.82

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Solution

The fourth proportional to 768,839.58, 1,060,807.59 and 666,701.82 is: 919,882.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,839.58 : 1,060,807.59 = 666,701.82 : x
  2. Step 2: Convert to fraction form
    768,839.58/1,060,807.59 = 666,701.82/x
  3. Step 3: Cross multiply
    768,839.58x = 1,060,807.59 × 666,701.82
  4. Step 4: Simplify right side
    768,839.58x = 707,242,350,922.81
  5. Step 5: Solve for x
    x = 707,242,350,922.81/768,839.58
  6. Step 6: Final answer
    x = 919,882.86

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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.