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Finding the Fourth Proportional to 2,934,689.60, 4,402,034.40 and 2,021,398.40

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Solution

The fourth proportional to 2,934,689.60, 4,402,034.40 and 2,021,398.40 is: 3,032,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,934,689.60 : 4,402,034.40 = 2,021,398.40 : x
  2. Step 2: Convert to fraction form
    2,934,689.60/4,402,034.40 = 2,021,398.40/x
  3. Step 3: Cross multiply
    2,934,689.60x = 4,402,034.40 × 2,021,398.40
  4. Step 4: Simplify right side
    2,934,689.60x = 8,898,265,292,904.96
  5. Step 5: Solve for x
    x = 8,898,265,292,904.96/2,934,689.60
  6. Step 6: Final answer
    x = 3,032,097.60

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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.