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Finding the Fourth Proportional to 2,798,582.70, 4,197,897.57 and 776,984.27

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Solution

The fourth proportional to 2,798,582.70, 4,197,897.57 and 776,984.27 is: 1,165,482.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798,582.70 : 4,197,897.57 = 776,984.27 : x
  2. Step 2: Convert to fraction form
    2,798,582.70/4,197,897.57 = 776,984.27/x
  3. Step 3: Cross multiply
    2,798,582.70x = 4,197,897.57 × 776,984.27
  4. Step 4: Simplify right side
    2,798,582.70x = 3,261,700,357,971.74
  5. Step 5: Solve for x
    x = 3,261,700,357,971.74/2,798,582.70
  6. Step 6: Final answer
    x = 1,165,482.93

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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.