Home / 1,285,403.14-1,773,962.49-712,622.98

Finding the Fourth Proportional to 1,285,403.14, 1,773,962.49 and 712,622.98

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Solution

The fourth proportional to 1,285,403.14, 1,773,962.49 and 712,622.98 is: 983,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,403.14 : 1,773,962.49 = 712,622.98 : x
  2. Step 2: Convert to fraction form
    1,285,403.14/1,773,962.49 = 712,622.98/x
  3. Step 3: Cross multiply
    1,285,403.14x = 1,773,962.49 × 712,622.98
  4. Step 4: Simplify right side
    1,285,403.14x = 1,264,166,436,032.02
  5. Step 5: Solve for x
    x = 1,264,166,436,032.02/1,285,403.14
  6. Step 6: Final answer
    x = 983,478.57

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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.