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Finding the Fourth Proportional to 544,075.40, 816,113.10 and 211,435.40

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Solution

The fourth proportional to 544,075.40, 816,113.10 and 211,435.40 is: 317,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,075.40 : 816,113.10 = 211,435.40 : x
  2. Step 2: Convert to fraction form
    544,075.40/816,113.10 = 211,435.40/x
  3. Step 3: Cross multiply
    544,075.40x = 816,113.10 × 211,435.40
  4. Step 4: Simplify right side
    544,075.40x = 172,555,199,743.74
  5. Step 5: Solve for x
    x = 172,555,199,743.74/544,075.40
  6. Step 6: Final answer
    x = 317,153.10

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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.