Home / 637,760.23-880,045.26-392,705.72

Finding the Fourth Proportional to 637,760.23, 880,045.26 and 392,705.72

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Solution

The fourth proportional to 637,760.23, 880,045.26 and 392,705.72 is: 541,894.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,760.23 : 880,045.26 = 392,705.72 : x
  2. Step 2: Convert to fraction form
    637,760.23/880,045.26 = 392,705.72/x
  3. Step 3: Cross multiply
    637,760.23x = 880,045.26 × 392,705.72
  4. Step 4: Simplify right side
    637,760.23x = 345,598,804,888.18
  5. Step 5: Solve for x
    x = 345,598,804,888.18/637,760.23
  6. Step 6: Final answer
    x = 541,894.57

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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.