Home / 775,527.20-1,163,290.80-510,106.40

Finding the Fourth Proportional to 775,527.20, 1,163,290.80 and 510,106.40

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Solution

The fourth proportional to 775,527.20, 1,163,290.80 and 510,106.40 is: 765,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,527.20 : 1,163,290.80 = 510,106.40 : x
  2. Step 2: Convert to fraction form
    775,527.20/1,163,290.80 = 510,106.40/x
  3. Step 3: Cross multiply
    775,527.20x = 1,163,290.80 × 510,106.40
  4. Step 4: Simplify right side
    775,527.20x = 593,402,082,141.12
  5. Step 5: Solve for x
    x = 593,402,082,141.12/775,527.20
  6. Step 6: Final answer
    x = 765,159.60

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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.