Home / 687,934.35-949,317.45-382,030.11

Finding the Fourth Proportional to 687,934.35, 949,317.45 and 382,030.11

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Solution

The fourth proportional to 687,934.35, 949,317.45 and 382,030.11 is: 527,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,934.35 : 949,317.45 = 382,030.11 : x
  2. Step 2: Convert to fraction form
    687,934.35/949,317.45 = 382,030.11/x
  3. Step 3: Cross multiply
    687,934.35x = 949,317.45 × 382,030.11
  4. Step 4: Simplify right side
    687,934.35x = 362,667,849,848.42
  5. Step 5: Solve for x
    x = 362,667,849,848.42/687,934.35
  6. Step 6: Final answer
    x = 527,183.81

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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.