Home / 883,135.32-1,218,885.78-520,538.01

Finding the Fourth Proportional to 883,135.32, 1,218,885.78 and 520,538.01

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Solution

The fourth proportional to 883,135.32, 1,218,885.78 and 520,538.01 is: 718,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,135.32 : 1,218,885.78 = 520,538.01 : x
  2. Step 2: Convert to fraction form
    883,135.32/1,218,885.78 = 520,538.01/x
  3. Step 3: Cross multiply
    883,135.32x = 1,218,885.78 × 520,538.01
  4. Step 4: Simplify right side
    883,135.32x = 634,476,372,244.07
  5. Step 5: Solve for x
    x = 634,476,372,244.07/883,135.32
  6. Step 6: Final answer
    x = 718,436.19

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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.