Home / 688,160.95-949,631.31-382,258.42

Finding the Fourth Proportional to 688,160.95, 949,631.31 and 382,258.42

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Solution

The fourth proportional to 688,160.95, 949,631.31 and 382,258.42 is: 527,499.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,160.95 : 949,631.31 = 382,258.42 : x
  2. Step 2: Convert to fraction form
    688,160.95/949,631.31 = 382,258.42/x
  3. Step 3: Cross multiply
    688,160.95x = 949,631.31 × 382,258.42
  4. Step 4: Simplify right side
    688,160.95x = 363,004,561,769.05
  5. Step 5: Solve for x
    x = 363,004,561,769.05/688,160.95
  6. Step 6: Final answer
    x = 527,499.51

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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.