Home / 671,211.39-926,313.05-384,774.53

Finding the Fourth Proportional to 671,211.39, 926,313.05 and 384,774.53

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Solution

The fourth proportional to 671,211.39, 926,313.05 and 384,774.53 is: 531,012.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,211.39 : 926,313.05 = 384,774.53 : x
  2. Step 2: Convert to fraction form
    671,211.39/926,313.05 = 384,774.53/x
  3. Step 3: Cross multiply
    671,211.39x = 926,313.05 × 384,774.53
  4. Step 4: Simplify right side
    671,211.39x = 356,421,671,724.34
  5. Step 5: Solve for x
    x = 356,421,671,724.34/671,211.39
  6. Step 6: Final answer
    x = 531,012.55

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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.