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Finding the Fourth Proportional to 2,134,259.40, 2,992,939.80 and 2,134,259.40

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Solution

The fourth proportional to 2,134,259.40, 2,992,939.80 and 2,134,259.40 is: 2,992,939.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134,259.40 : 2,992,939.80 = 2,134,259.40 : x
  2. Step 2: Convert to fraction form
    2,134,259.40/2,992,939.80 = 2,134,259.40/x
  3. Step 3: Cross multiply
    2,134,259.40x = 2,992,939.80 × 2,134,259.40
  4. Step 4: Simplify right side
    2,134,259.40x = 6,387,709,901,784.12
  5. Step 5: Solve for x
    x = 6,387,709,901,784.12/2,134,259.40
  6. Step 6: Final answer
    x = 2,992,939.80

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Double scale
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1.5x scale

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.