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Finding the Fourth Proportional to 1,041,706.40, 1,562,705.40 and 442,662.80

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Solution

The fourth proportional to 1,041,706.40, 1,562,705.40 and 442,662.80 is: 664,056.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041,706.40 : 1,562,705.40 = 442,662.80 : x
  2. Step 2: Convert to fraction form
    1,041,706.40/1,562,705.40 = 442,662.80/x
  3. Step 3: Cross multiply
    1,041,706.40x = 1,562,705.40 × 442,662.80
  4. Step 4: Simplify right side
    1,041,706.40x = 691,751,547,939.12
  5. Step 5: Solve for x
    x = 691,751,547,939.12/1,041,706.40
  6. Step 6: Final answer
    x = 664,056.16

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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.