Home / 619,987.47-930,015.86-193,582.19

Finding the Fourth Proportional to 619,987.47, 930,015.86 and 193,582.19

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Solution

The fourth proportional to 619,987.47, 930,015.86 and 193,582.19 is: 290,384.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,987.47 : 930,015.86 = 193,582.19 : x
  2. Step 2: Convert to fraction form
    619,987.47/930,015.86 = 193,582.19/x
  3. Step 3: Cross multiply
    619,987.47x = 930,015.86 × 193,582.19
  4. Step 4: Simplify right side
    619,987.47x = 180,034,504,783.10
  5. Step 5: Solve for x
    x = 180,034,504,783.10/619,987.47
  6. Step 6: Final answer
    x = 290,384.10

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Double scale
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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.