Home / 520,848.82-719,017.07-391,836.53

Finding the Fourth Proportional to 520,848.82, 719,017.07 and 391,836.53

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Solution

The fourth proportional to 520,848.82, 719,017.07 and 391,836.53 is: 540,919.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,848.82 : 719,017.07 = 391,836.53 : x
  2. Step 2: Convert to fraction form
    520,848.82/719,017.07 = 391,836.53/x
  3. Step 3: Cross multiply
    520,848.82x = 719,017.07 × 391,836.53
  4. Step 4: Simplify right side
    520,848.82x = 281,737,153,719.57
  5. Step 5: Solve for x
    x = 281,737,153,719.57/520,848.82
  6. Step 6: Final answer
    x = 540,919.25

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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.