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Finding the Fourth Proportional to 688,439.68, 950,058.96 and 382,544.32

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Solution

The fourth proportional to 688,439.68, 950,058.96 and 382,544.32 is: 527,917.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,439.68 : 950,058.96 = 382,544.32 : x
  2. Step 2: Convert to fraction form
    688,439.68/950,058.96 = 382,544.32/x
  3. Step 3: Cross multiply
    688,439.68x = 950,058.96 × 382,544.32
  4. Step 4: Simplify right side
    688,439.68x = 363,439,658,813.11
  5. Step 5: Solve for x
    x = 363,439,658,813.11/688,439.68
  6. Step 6: Final answer
    x = 527,917.94

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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.