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Finding the Fourth Proportional to 910,617.64, 1,366,074.60 and 342,043

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Solution

The fourth proportional to 910,617.64, 1,366,074.60 and 342,043 is: 513,120.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,617.64 : 1,366,074.60 = 342,043 : x
  2. Step 2: Convert to fraction form
    910,617.64/1,366,074.60 = 342,043/x
  3. Step 3: Cross multiply
    910,617.64x = 1,366,074.60 × 342,043
  4. Step 4: Simplify right side
    910,617.64x = 467,256,254,407.80
  5. Step 5: Solve for x
    x = 467,256,254,407.80/910,617.64
  6. Step 6: Final answer
    x = 513,120.14

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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.