Home / 1,239,904.52-1,711,124.93-688,622.38

Finding the Fourth Proportional to 1,239,904.52, 1,711,124.93 and 688,622.38

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Solution

The fourth proportional to 1,239,904.52, 1,711,124.93 and 688,622.38 is: 950,330.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,904.52 : 1,711,124.93 = 688,622.38 : x
  2. Step 2: Convert to fraction form
    1,239,904.52/1,711,124.93 = 688,622.38/x
  3. Step 3: Cross multiply
    1,239,904.52x = 1,711,124.93 × 688,622.38
  4. Step 4: Simplify right side
    1,239,904.52x = 1,178,318,921,773.93
  5. Step 5: Solve for x
    x = 1,178,318,921,773.93/1,239,904.52
  6. Step 6: Final answer
    x = 950,330.37

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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.