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Finding the Fourth Proportional to 461,681.39, 637,131.04 and 289,606.60

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Solution

The fourth proportional to 461,681.39, 637,131.04 and 289,606.60 is: 399,663.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,681.39 : 637,131.04 = 289,606.60 : x
  2. Step 2: Convert to fraction form
    461,681.39/637,131.04 = 289,606.60/x
  3. Step 3: Cross multiply
    461,681.39x = 637,131.04 × 289,606.60
  4. Step 4: Simplify right side
    461,681.39x = 184,517,354,248.86
  5. Step 5: Solve for x
    x = 184,517,354,248.86/461,681.39
  6. Step 6: Final answer
    x = 399,663.83

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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.