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Finding the Fourth Proportional to 1,562,783, 2,156,653.56 and 847,391

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Solution

The fourth proportional to 1,562,783, 2,156,653.56 and 847,391 is: 1,169,406.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562,783 : 2,156,653.56 = 847,391 : x
  2. Step 2: Convert to fraction form
    1,562,783/2,156,653.56 = 847,391/x
  3. Step 3: Cross multiply
    1,562,783x = 2,156,653.56 × 847,391
  4. Step 4: Simplify right side
    1,562,783x = 1,827,528,816,861.96
  5. Step 5: Solve for x
    x = 1,827,528,816,861.96/1,562,783
  6. Step 6: Final answer
    x = 1,169,406.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.