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Finding the Fourth Proportional to 877,765.17, 1,316,647.75 and 246,678.98

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Solution

The fourth proportional to 877,765.17, 1,316,647.75 and 246,678.98 is: 370,018.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,765.17 : 1,316,647.75 = 246,678.98 : x
  2. Step 2: Convert to fraction form
    877,765.17/1,316,647.75 = 246,678.98/x
  3. Step 3: Cross multiply
    877,765.17x = 1,316,647.75 × 246,678.98
  4. Step 4: Simplify right side
    877,765.17x = 324,789,316,172.66
  5. Step 5: Solve for x
    x = 324,789,316,172.66/877,765.17
  6. Step 6: Final answer
    x = 370,018.46

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.