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Finding the Fourth Proportional to 993,457.44, 1,490,437.68 and 283,488

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Solution

The fourth proportional to 993,457.44, 1,490,437.68 and 283,488 is: 425,303.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,457.44 : 1,490,437.68 = 283,488 : x
  2. Step 2: Convert to fraction form
    993,457.44/1,490,437.68 = 283,488/x
  3. Step 3: Cross multiply
    993,457.44x = 1,490,437.68 × 283,488
  4. Step 4: Simplify right side
    993,457.44x = 422,521,197,027.84
  5. Step 5: Solve for x
    x = 422,521,197,027.84/993,457.44
  6. Step 6: Final answer
    x = 425,303.77

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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.