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Finding the Fourth Proportional to 721,945.09, 996,736.08 and 463,926.07

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Solution

The fourth proportional to 721,945.09, 996,736.08 and 463,926.07 is: 640,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,945.09 : 996,736.08 = 463,926.07 : x
  2. Step 2: Convert to fraction form
    721,945.09/996,736.08 = 463,926.07/x
  3. Step 3: Cross multiply
    721,945.09x = 996,736.08 × 463,926.07
  4. Step 4: Simplify right side
    721,945.09x = 462,411,852,421.61
  5. Step 5: Solve for x
    x = 462,411,852,421.61/721,945.09
  6. Step 6: Final answer
    x = 640,508.34

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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.