Home / 638,299.77-880,569.60-366,302.58

Finding the Fourth Proportional to 638,299.77, 880,569.60 and 366,302.58

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Solution

The fourth proportional to 638,299.77, 880,569.60 and 366,302.58 is: 505,334.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,299.77 : 880,569.60 = 366,302.58 : x
  2. Step 2: Convert to fraction form
    638,299.77/880,569.60 = 366,302.58/x
  3. Step 3: Cross multiply
    638,299.77x = 880,569.60 × 366,302.58
  4. Step 4: Simplify right side
    638,299.77x = 322,554,916,349.57
  5. Step 5: Solve for x
    x = 322,554,916,349.57/638,299.77
  6. Step 6: Final answer
    x = 505,334.53

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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.