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Finding the Fourth Proportional to 1,230,409.10, 1,718,373.70 and 1,230,409.10

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Solution

The fourth proportional to 1,230,409.10, 1,718,373.70 and 1,230,409.10 is: 1,718,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,409.10 : 1,718,373.70 = 1,230,409.10 : x
  2. Step 2: Convert to fraction form
    1,230,409.10/1,718,373.70 = 1,230,409.10/x
  3. Step 3: Cross multiply
    1,230,409.10x = 1,718,373.70 × 1,230,409.10
  4. Step 4: Simplify right side
    1,230,409.10x = 2,114,302,637,680.67
  5. Step 5: Solve for x
    x = 2,114,302,637,680.67/1,230,409.10
  6. Step 6: Final answer
    x = 1,718,373.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.