Home / 1,186,064.78-1,636,734.40-669,839.83

Finding the Fourth Proportional to 1,186,064.78, 1,636,734.40 and 669,839.83

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Solution

The fourth proportional to 1,186,064.78, 1,636,734.40 and 669,839.83 is: 924,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,064.78 : 1,636,734.40 = 669,839.83 : x
  2. Step 2: Convert to fraction form
    1,186,064.78/1,636,734.40 = 669,839.83/x
  3. Step 3: Cross multiply
    1,186,064.78x = 1,636,734.40 × 669,839.83
  4. Step 4: Simplify right side
    1,186,064.78x = 1,096,349,886,484.72
  5. Step 5: Solve for x
    x = 1,096,349,886,484.72/1,186,064.78
  6. Step 6: Final answer
    x = 924,359.20

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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.