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Finding the Fourth Proportional to 811,036.35, 1,216,554.53 and 811,036.35

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Solution

The fourth proportional to 811,036.35, 1,216,554.53 and 811,036.35 is: 1,216,554.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,036.35 : 1,216,554.53 = 811,036.35 : x
  2. Step 2: Convert to fraction form
    811,036.35/1,216,554.53 = 811,036.35/x
  3. Step 3: Cross multiply
    811,036.35x = 1,216,554.53 × 811,036.35
  4. Step 4: Simplify right side
    811,036.35x = 986,669,941,531.98
  5. Step 5: Solve for x
    x = 986,669,941,531.98/811,036.35
  6. Step 6: Final answer
    x = 1,216,554.53

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Double scale
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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.