Home / 699,159.57-964,914.20-427,386.54

Finding the Fourth Proportional to 699,159.57, 964,914.20 and 427,386.54

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Solution

The fourth proportional to 699,159.57, 964,914.20 and 427,386.54 is: 589,838.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,159.57 : 964,914.20 = 427,386.54 : x
  2. Step 2: Convert to fraction form
    699,159.57/964,914.20 = 427,386.54/x
  3. Step 3: Cross multiply
    699,159.57x = 964,914.20 × 427,386.54
  4. Step 4: Simplify right side
    699,159.57x = 412,391,341,334.87
  5. Step 5: Solve for x
    x = 412,391,341,334.87/699,159.57
  6. Step 6: Final answer
    x = 589,838.66

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1.5x scale

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.