Home / 1,223,905.62-1,688,505.93-707,564.49

Finding the Fourth Proportional to 1,223,905.62, 1,688,505.93 and 707,564.49

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Solution

The fourth proportional to 1,223,905.62, 1,688,505.93 and 707,564.49 is: 976,159.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,905.62 : 1,688,505.93 = 707,564.49 : x
  2. Step 2: Convert to fraction form
    1,223,905.62/1,688,505.93 = 707,564.49/x
  3. Step 3: Cross multiply
    1,223,905.62x = 1,688,505.93 × 707,564.49
  4. Step 4: Simplify right side
    1,223,905.62x = 1,194,726,837,222.43
  5. Step 5: Solve for x
    x = 1,194,726,837,222.43/1,223,905.62
  6. Step 6: Final answer
    x = 976,159.29

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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.