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Finding the Fourth Proportional to 453,415.35, 680,646.83 and 243,463.35

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Solution

The fourth proportional to 453,415.35, 680,646.83 and 243,463.35 is: 365,476.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,415.35 : 680,646.83 = 243,463.35 : x
  2. Step 2: Convert to fraction form
    453,415.35/680,646.83 = 243,463.35/x
  3. Step 3: Cross multiply
    453,415.35x = 680,646.83 × 243,463.35
  4. Step 4: Simplify right side
    453,415.35x = 165,712,556,181.36
  5. Step 5: Solve for x
    x = 165,712,556,181.36/453,415.35
  6. Step 6: Final answer
    x = 365,476.28

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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.