Home / 661,927.66-913,421.55-371,512.24

Finding the Fourth Proportional to 661,927.66, 913,421.55 and 371,512.24

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Solution

The fourth proportional to 661,927.66, 913,421.55 and 371,512.24 is: 512,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,927.66 : 913,421.55 = 371,512.24 : x
  2. Step 2: Convert to fraction form
    661,927.66/913,421.55 = 371,512.24/x
  3. Step 3: Cross multiply
    661,927.66x = 913,421.55 × 371,512.24
  4. Step 4: Simplify right side
    661,927.66x = 339,347,286,104.77
  5. Step 5: Solve for x
    x = 339,347,286,104.77/661,927.66
  6. Step 6: Final answer
    x = 512,665.21

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Double scale
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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.