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Finding the Fourth Proportional to 2,913,573.90, 4,020,543.90 and 1,624,337.40

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Solution

The fourth proportional to 2,913,573.90, 4,020,543.90 and 1,624,337.40 is: 2,241,480.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913,573.90 : 4,020,543.90 = 1,624,337.40 : x
  2. Step 2: Convert to fraction form
    2,913,573.90/4,020,543.90 = 1,624,337.40/x
  3. Step 3: Cross multiply
    2,913,573.90x = 4,020,543.90 × 1,624,337.40
  4. Step 4: Simplify right side
    2,913,573.90x = 6,530,719,825,111.86
  5. Step 5: Solve for x
    x = 6,530,719,825,111.86/2,913,573.90
  6. Step 6: Final answer
    x = 2,241,480.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.