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Finding the Fourth Proportional to 3,316,948.86, 4,975,450.98 and 920,980.35

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Solution

The fourth proportional to 3,316,948.86, 4,975,450.98 and 920,980.35 is: 1,381,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316,948.86 : 4,975,450.98 = 920,980.35 : x
  2. Step 2: Convert to fraction form
    3,316,948.86/4,975,450.98 = 920,980.35/x
  3. Step 3: Cross multiply
    3,316,948.86x = 4,975,450.98 × 920,980.35
  4. Step 4: Simplify right side
    3,316,948.86x = 4,582,292,584,968.24
  5. Step 5: Solve for x
    x = 4,582,292,584,968.24/3,316,948.86
  6. Step 6: Final answer
    x = 1,381,478.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.