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Finding the Fourth Proportional to 1,166,815.20, 1,746,334.80 and 846,055.20

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Solution

The fourth proportional to 1,166,815.20, 1,746,334.80 and 846,055.20 is: 1,266,263.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,815.20 : 1,746,334.80 = 846,055.20 : x
  2. Step 2: Convert to fraction form
    1,166,815.20/1,746,334.80 = 846,055.20/x
  3. Step 3: Cross multiply
    1,166,815.20x = 1,746,334.80 × 846,055.20
  4. Step 4: Simplify right side
    1,166,815.20x = 1,477,495,638,480.96
  5. Step 5: Solve for x
    x = 1,477,495,638,480.96/1,166,815.20
  6. Step 6: Final answer
    x = 1,266,263.62

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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.