Home / 414,931.80-621,015.30-365,165.40

Finding the Fourth Proportional to 414,931.80, 621,015.30 and 365,165.40

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Solution

The fourth proportional to 414,931.80, 621,015.30 and 365,165.40 is: 546,531.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,931.80 : 621,015.30 = 365,165.40 : x
  2. Step 2: Convert to fraction form
    414,931.80/621,015.30 = 365,165.40/x
  3. Step 3: Cross multiply
    414,931.80x = 621,015.30 × 365,165.40
  4. Step 4: Simplify right side
    414,931.80x = 226,773,300,430.62
  5. Step 5: Solve for x
    x = 226,773,300,430.62/414,931.80
  6. Step 6: Final answer
    x = 546,531.50

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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.