Home / 620,555.20-931,707.60-384,359.20

Finding the Fourth Proportional to 620,555.20, 931,707.60 and 384,359.20

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Solution

The fourth proportional to 620,555.20, 931,707.60 and 384,359.20 is: 577,080.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,555.20 : 931,707.60 = 384,359.20 : x
  2. Step 2: Convert to fraction form
    620,555.20/931,707.60 = 384,359.20/x
  3. Step 3: Cross multiply
    620,555.20x = 931,707.60 × 384,359.20
  4. Step 4: Simplify right side
    620,555.20x = 358,110,387,769.92
  5. Step 5: Solve for x
    x = 358,110,387,769.92/620,555.20
  6. Step 6: Final answer
    x = 577,080.63

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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.