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Finding the Fourth Proportional to 590,548, 815,000.04 and 335,981.20

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Solution

The fourth proportional to 590,548, 815,000.04 and 335,981.20 is: 463,678.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,548 : 815,000.04 = 335,981.20 : x
  2. Step 2: Convert to fraction form
    590,548/815,000.04 = 335,981.20/x
  3. Step 3: Cross multiply
    590,548x = 815,000.04 × 335,981.20
  4. Step 4: Simplify right side
    590,548x = 273,824,691,439.25
  5. Step 5: Solve for x
    x = 273,824,691,439.25/590,548
  6. Step 6: Final answer
    x = 463,678.98

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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.