Home / 1,285,278.90-1,773,685.05-712,356.06

Finding the Fourth Proportional to 1,285,278.90, 1,773,685.05 and 712,356.06

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Solution

The fourth proportional to 1,285,278.90, 1,773,685.05 and 712,356.06 is: 983,051.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,278.90 : 1,773,685.05 = 712,356.06 : x
  2. Step 2: Convert to fraction form
    1,285,278.90/1,773,685.05 = 712,356.06/x
  3. Step 3: Cross multiply
    1,285,278.90x = 1,773,685.05 × 712,356.06
  4. Step 4: Simplify right side
    1,285,278.90x = 1,263,495,293,898.90
  5. Step 5: Solve for x
    x = 1,263,495,293,898.90/1,285,278.90
  6. Step 6: Final answer
    x = 983,051.46

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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.