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Finding the Fourth Proportional to 1,953,379.03, 2,931,068.85 and 929,867.62

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Solution

The fourth proportional to 1,953,379.03, 2,931,068.85 and 929,867.62 is: 1,395,277.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953,379.03 : 2,931,068.85 = 929,867.62 : x
  2. Step 2: Convert to fraction form
    1,953,379.03/2,931,068.85 = 929,867.62/x
  3. Step 3: Cross multiply
    1,953,379.03x = 2,931,068.85 × 929,867.62
  4. Step 4: Simplify right side
    1,953,379.03x = 2,725,506,015,605.64
  5. Step 5: Solve for x
    x = 2,725,506,015,605.64/1,953,379.03
  6. Step 6: Final answer
    x = 1,395,277.61

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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.