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Finding the Fourth Proportional to 2,974,865.40, 4,176,009 and 2,974,865.40

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Solution

The fourth proportional to 2,974,865.40, 4,176,009 and 2,974,865.40 is: 4,176,009

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974,865.40 : 4,176,009 = 2,974,865.40 : x
  2. Step 2: Convert to fraction form
    2,974,865.40/4,176,009 = 2,974,865.40/x
  3. Step 3: Cross multiply
    2,974,865.40x = 4,176,009 × 2,974,865.40
  4. Step 4: Simplify right side
    2,974,865.40x = 12,423,064,684,188.60
  5. Step 5: Solve for x
    x = 12,423,064,684,188.60/2,974,865.40
  6. Step 6: Final answer
    x = 4,176,009

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.