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Finding the Fourth Proportional to 818,573.70, 1,227,860.55 and 700,475.70

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Solution

The fourth proportional to 818,573.70, 1,227,860.55 and 700,475.70 is: 1,050,713.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,573.70 : 1,227,860.55 = 700,475.70 : x
  2. Step 2: Convert to fraction form
    818,573.70/1,227,860.55 = 700,475.70/x
  3. Step 3: Cross multiply
    818,573.70x = 1,227,860.55 × 700,475.70
  4. Step 4: Simplify right side
    818,573.70x = 860,086,478,263.64
  5. Step 5: Solve for x
    x = 860,086,478,263.64/818,573.70
  6. Step 6: Final answer
    x = 1,050,713.55

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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.