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Finding the Fourth Proportional to 657,578.32, 907,458.44 and 456,490.96

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Solution

The fourth proportional to 657,578.32, 907,458.44 and 456,490.96 is: 629,957.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,578.32 : 907,458.44 = 456,490.96 : x
  2. Step 2: Convert to fraction form
    657,578.32/907,458.44 = 456,490.96/x
  3. Step 3: Cross multiply
    657,578.32x = 907,458.44 × 456,490.96
  4. Step 4: Simplify right side
    657,578.32x = 414,246,574,435.70
  5. Step 5: Solve for x
    x = 414,246,574,435.70/657,578.32
  6. Step 6: Final answer
    x = 629,957.77

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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.