Home / 1,326,327.60-1,989,491.40-439,863.60

Finding the Fourth Proportional to 1,326,327.60, 1,989,491.40 and 439,863.60

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Solution

The fourth proportional to 1,326,327.60, 1,989,491.40 and 439,863.60 is: 659,795.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,327.60 : 1,989,491.40 = 439,863.60 : x
  2. Step 2: Convert to fraction form
    1,326,327.60/1,989,491.40 = 439,863.60/x
  3. Step 3: Cross multiply
    1,326,327.60x = 1,989,491.40 × 439,863.60
  4. Step 4: Simplify right side
    1,326,327.60x = 875,104,849,373.04
  5. Step 5: Solve for x
    x = 875,104,849,373.04/1,326,327.60
  6. Step 6: Final answer
    x = 659,795.40

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Double scale
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Similar ratio
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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.