Home / 885,990.80-1,330,298.40-686,536.40

Finding the Fourth Proportional to 885,990.80, 1,330,298.40 and 686,536.40

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Solution

The fourth proportional to 885,990.80, 1,330,298.40 and 686,536.40 is: 1,030,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,990.80 : 1,330,298.40 = 686,536.40 : x
  2. Step 2: Convert to fraction form
    885,990.80/1,330,298.40 = 686,536.40/x
  3. Step 3: Cross multiply
    885,990.80x = 1,330,298.40 × 686,536.40
  4. Step 4: Simplify right side
    885,990.80x = 913,298,274,461.76
  5. Step 5: Solve for x
    x = 913,298,274,461.76/885,990.80
  6. Step 6: Final answer
    x = 1,030,821.40

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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.