Home / 669,528.59-923,724.69-379,100.45

Finding the Fourth Proportional to 669,528.59, 923,724.69 and 379,100.45

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Solution

The fourth proportional to 669,528.59, 923,724.69 and 379,100.45 is: 523,031.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,528.59 : 923,724.69 = 379,100.45 : x
  2. Step 2: Convert to fraction form
    669,528.59/923,724.69 = 379,100.45/x
  3. Step 3: Cross multiply
    669,528.59x = 923,724.69 × 379,100.45
  4. Step 4: Simplify right side
    669,528.59x = 350,184,441,036.49
  5. Step 5: Solve for x
    x = 350,184,441,036.49/669,528.59
  6. Step 6: Final answer
    x = 523,031.35

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Double scale
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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.