Home / 1,186,710.71-1,780,066.05-288,146.39

Finding the Fourth Proportional to 1,186,710.71, 1,780,066.05 and 288,146.39

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Solution

The fourth proportional to 1,186,710.71, 1,780,066.05 and 288,146.39 is: 432,219.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,710.71 : 1,780,066.05 = 288,146.39 : x
  2. Step 2: Convert to fraction form
    1,186,710.71/1,780,066.05 = 288,146.39/x
  3. Step 3: Cross multiply
    1,186,710.71x = 1,780,066.05 × 288,146.39
  4. Step 4: Simplify right side
    1,186,710.71x = 512,919,597,368.73
  5. Step 5: Solve for x
    x = 512,919,597,368.73/1,186,710.71
  6. Step 6: Final answer
    x = 432,219.58

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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.