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Finding the Fourth Proportional to 590,404.90, 884,295.15 and 485,428.90

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Solution

The fourth proportional to 590,404.90, 884,295.15 and 485,428.90 is: 727,064.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,404.90 : 884,295.15 = 485,428.90 : x
  2. Step 2: Convert to fraction form
    590,404.90/884,295.15 = 485,428.90/x
  3. Step 3: Cross multiply
    590,404.90x = 884,295.15 × 485,428.90
  4. Step 4: Simplify right side
    590,404.90x = 429,262,421,939.84
  5. Step 5: Solve for x
    x = 429,262,421,939.84/590,404.90
  6. Step 6: Final answer
    x = 727,064.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.