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Finding the Fourth Proportional to 641,313.83, 884,627.51 and 423,524.51

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Solution

The fourth proportional to 641,313.83, 884,627.51 and 423,524.51 is: 584,209.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,313.83 : 884,627.51 = 423,524.51 : x
  2. Step 2: Convert to fraction form
    641,313.83/884,627.51 = 423,524.51/x
  3. Step 3: Cross multiply
    641,313.83x = 884,627.51 × 423,524.51
  4. Step 4: Simplify right side
    641,313.83x = 374,661,426,164.51
  5. Step 5: Solve for x
    x = 374,661,426,164.51/641,313.83
  6. Step 6: Final answer
    x = 584,209.18

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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.