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Finding the Fourth Proportional to 5,705,907.79, 8,559,661.15 and 1,868,030.59

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Solution

The fourth proportional to 5,705,907.79, 8,559,661.15 and 1,868,030.59 is: 2,802,307.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705,907.79 : 8,559,661.15 = 1,868,030.59 : x
  2. Step 2: Convert to fraction form
    5,705,907.79/8,559,661.15 = 1,868,030.59/x
  3. Step 3: Cross multiply
    5,705,907.79x = 8,559,661.15 × 1,868,030.59
  4. Step 4: Simplify right side
    5,705,907.79x = 15,989,708,868,234.58
  5. Step 5: Solve for x
    x = 15,989,708,868,234.58/5,705,907.79
  6. Step 6: Final answer
    x = 2,802,307.62

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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.