Home / 956,109.96-1,319,439.71-520,530.30

Finding the Fourth Proportional to 956,109.96, 1,319,439.71 and 520,530.30

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Solution

The fourth proportional to 956,109.96, 1,319,439.71 and 520,530.30 is: 718,336.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,109.96 : 1,319,439.71 = 520,530.30 : x
  2. Step 2: Convert to fraction form
    956,109.96/1,319,439.71 = 520,530.30/x
  3. Step 3: Cross multiply
    956,109.96x = 1,319,439.71 × 520,530.30
  4. Step 4: Simplify right side
    956,109.96x = 686,808,352,690.85
  5. Step 5: Solve for x
    x = 686,808,352,690.85/956,109.96
  6. Step 6: Final answer
    x = 718,336.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.