Home / 2,785,681.56-4,178,523.72-1,838,830.98

Finding the Fourth Proportional to 2,785,681.56, 4,178,523.72 and 1,838,830.98

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Solution

The fourth proportional to 2,785,681.56, 4,178,523.72 and 1,838,830.98 is: 2,758,247.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785,681.56 : 4,178,523.72 = 1,838,830.98 : x
  2. Step 2: Convert to fraction form
    2,785,681.56/4,178,523.72 = 1,838,830.98/x
  3. Step 3: Cross multiply
    2,785,681.56x = 4,178,523.72 × 1,838,830.98
  4. Step 4: Simplify right side
    2,785,681.56x = 7,683,598,867,000.85
  5. Step 5: Solve for x
    x = 7,683,598,867,000.85/2,785,681.56
  6. Step 6: Final answer
    x = 2,758,247.38

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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.