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Finding the Fourth Proportional to 590,550, 815,002.80 and 335,983.20

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Solution

The fourth proportional to 590,550, 815,002.80 and 335,983.20 is: 463,681.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,550 : 815,002.80 = 335,983.20 : x
  2. Step 2: Convert to fraction form
    590,550/815,002.80 = 335,983.20/x
  3. Step 3: Cross multiply
    590,550x = 815,002.80 × 335,983.20
  4. Step 4: Simplify right side
    590,550x = 273,827,248,752.96
  5. Step 5: Solve for x
    x = 273,827,248,752.96/590,550
  6. Step 6: Final answer
    x = 463,681.74

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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.