Home / 1,230,192.54-1,697,666.76-686,328.44

Finding the Fourth Proportional to 1,230,192.54, 1,697,666.76 and 686,328.44

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Solution

The fourth proportional to 1,230,192.54, 1,697,666.76 and 686,328.44 is: 947,133.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,192.54 : 1,697,666.76 = 686,328.44 : x
  2. Step 2: Convert to fraction form
    1,230,192.54/1,697,666.76 = 686,328.44/x
  3. Step 3: Cross multiply
    1,230,192.54x = 1,697,666.76 × 686,328.44
  4. Step 4: Simplify right side
    1,230,192.54x = 1,165,156,981,056.81
  5. Step 5: Solve for x
    x = 1,165,156,981,056.81/1,230,192.54
  6. Step 6: Final answer
    x = 947,133.84

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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.