Home / 688,230.90-949,910.40-382,412.34

Finding the Fourth Proportional to 688,230.90, 949,910.40 and 382,412.34

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Solution

The fourth proportional to 688,230.90, 949,910.40 and 382,412.34 is: 527,813.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,230.90 : 949,910.40 = 382,412.34 : x
  2. Step 2: Convert to fraction form
    688,230.90/949,910.40 = 382,412.34/x
  3. Step 3: Cross multiply
    688,230.90x = 949,910.40 × 382,412.34
  4. Step 4: Simplify right side
    688,230.90x = 363,257,458,854.34
  5. Step 5: Solve for x
    x = 363,257,458,854.34/688,230.90
  6. Step 6: Final answer
    x = 527,813.35

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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.