Home / 1,918,362.40-2,877,543.60-656,000.80

Finding the Fourth Proportional to 1,918,362.40, 2,877,543.60 and 656,000.80

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Solution

The fourth proportional to 1,918,362.40, 2,877,543.60 and 656,000.80 is: 984,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,362.40 : 2,877,543.60 = 656,000.80 : x
  2. Step 2: Convert to fraction form
    1,918,362.40/2,877,543.60 = 656,000.80/x
  3. Step 3: Cross multiply
    1,918,362.40x = 2,877,543.60 × 656,000.80
  4. Step 4: Simplify right side
    1,918,362.40x = 1,887,670,903,634.88
  5. Step 5: Solve for x
    x = 1,887,670,903,634.88/1,918,362.40
  6. Step 6: Final answer
    x = 984,001.20

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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.