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Finding the Fourth Proportional to 450,663.76, 621,915.93 and 246,714.05

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Solution

The fourth proportional to 450,663.76, 621,915.93 and 246,714.05 is: 340,465.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,663.76 : 621,915.93 = 246,714.05 : x
  2. Step 2: Convert to fraction form
    450,663.76/621,915.93 = 246,714.05/x
  3. Step 3: Cross multiply
    450,663.76x = 621,915.93 × 246,714.05
  4. Step 4: Simplify right side
    450,663.76x = 153,435,397,849.82
  5. Step 5: Solve for x
    x = 153,435,397,849.82/450,663.76
  6. Step 6: Final answer
    x = 340,465.36

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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.