Home / 1,182,121.40-1,773,182.10-434,070.20

Finding the Fourth Proportional to 1,182,121.40, 1,773,182.10 and 434,070.20

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Solution

The fourth proportional to 1,182,121.40, 1,773,182.10 and 434,070.20 is: 651,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,121.40 : 1,773,182.10 = 434,070.20 : x
  2. Step 2: Convert to fraction form
    1,182,121.40/1,773,182.10 = 434,070.20/x
  3. Step 3: Cross multiply
    1,182,121.40x = 1,773,182.10 × 434,070.20
  4. Step 4: Simplify right side
    1,182,121.40x = 769,685,508,783.42
  5. Step 5: Solve for x
    x = 769,685,508,783.42/1,182,121.40
  6. Step 6: Final answer
    x = 651,105.30

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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.