Home / 1,238,681.60-1,858,022.40-397,318.40

Finding the Fourth Proportional to 1,238,681.60, 1,858,022.40 and 397,318.40

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Solution

The fourth proportional to 1,238,681.60, 1,858,022.40 and 397,318.40 is: 595,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,681.60 : 1,858,022.40 = 397,318.40 : x
  2. Step 2: Convert to fraction form
    1,238,681.60/1,858,022.40 = 397,318.40/x
  3. Step 3: Cross multiply
    1,238,681.60x = 1,858,022.40 × 397,318.40
  4. Step 4: Simplify right side
    1,238,681.60x = 738,226,487,132.16
  5. Step 5: Solve for x
    x = 738,226,487,132.16/1,238,681.60
  6. Step 6: Final answer
    x = 595,977.60

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Double scale
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Similar ratio
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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.