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Finding the Fourth Proportional to 3,316,386.74, 4,974,582.46 and 920,233.72

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Solution

The fourth proportional to 3,316,386.74, 4,974,582.46 and 920,233.72 is: 1,380,351.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316,386.74 : 4,974,582.46 = 920,233.72 : x
  2. Step 2: Convert to fraction form
    3,316,386.74/4,974,582.46 = 920,233.72/x
  3. Step 3: Cross multiply
    3,316,386.74x = 4,974,582.46 × 920,233.72
  4. Step 4: Simplify right side
    3,316,386.74x = 4,577,778,522,612.55
  5. Step 5: Solve for x
    x = 4,577,778,522,612.55/3,316,386.74
  6. Step 6: Final answer
    x = 1,380,351.23

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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.