Home / 883,135.07-1,218,885.44-520,537.76

Finding the Fourth Proportional to 883,135.07, 1,218,885.44 and 520,537.76

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Solution

The fourth proportional to 883,135.07, 1,218,885.44 and 520,537.76 is: 718,435.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,135.07 : 1,218,885.44 = 520,537.76 : x
  2. Step 2: Convert to fraction form
    883,135.07/1,218,885.44 = 520,537.76/x
  3. Step 3: Cross multiply
    883,135.07x = 1,218,885.44 × 520,537.76
  4. Step 4: Simplify right side
    883,135.07x = 634,475,887,937.10
  5. Step 5: Solve for x
    x = 634,475,887,937.10/883,135.07
  6. Step 6: Final answer
    x = 718,435.85

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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.