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Finding the Fourth Proportional to 462,038.76, 637,634.70 and 255,336.21

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Solution

The fourth proportional to 462,038.76, 637,634.70 and 255,336.21 is: 352,375.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,038.76 : 637,634.70 = 255,336.21 : x
  2. Step 2: Convert to fraction form
    462,038.76/637,634.70 = 255,336.21/x
  3. Step 3: Cross multiply
    462,038.76x = 637,634.70 × 255,336.21
  4. Step 4: Simplify right side
    462,038.76x = 162,811,227,662.49
  5. Step 5: Solve for x
    x = 162,811,227,662.49/462,038.76
  6. Step 6: Final answer
    x = 352,375.69

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Double scale
Find fourth proportional to 462,039.76, 637,636.08 and 255,337.21
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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.