Home / 688,221.90-949,898.04-382,403.34

Finding the Fourth Proportional to 688,221.90, 949,898.04 and 382,403.34

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Solution

The fourth proportional to 688,221.90, 949,898.04 and 382,403.34 is: 527,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,221.90 : 949,898.04 = 382,403.34 : x
  2. Step 2: Convert to fraction form
    688,221.90/949,898.04 = 382,403.34/x
  3. Step 3: Cross multiply
    688,221.90x = 949,898.04 × 382,403.34
  4. Step 4: Simplify right side
    688,221.90x = 363,244,183,155.45
  5. Step 5: Solve for x
    x = 363,244,183,155.45/688,221.90
  6. Step 6: Final answer
    x = 527,800.97

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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.