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Finding the Fourth Proportional to 536,646.10, 804,969.15 and 256,710.10

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Solution

The fourth proportional to 536,646.10, 804,969.15 and 256,710.10 is: 385,065.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,646.10 : 804,969.15 = 256,710.10 : x
  2. Step 2: Convert to fraction form
    536,646.10/804,969.15 = 256,710.10/x
  3. Step 3: Cross multiply
    536,646.10x = 804,969.15 × 256,710.10
  4. Step 4: Simplify right side
    536,646.10x = 206,643,710,993.42
  5. Step 5: Solve for x
    x = 206,643,710,993.42/536,646.10
  6. Step 6: Final answer
    x = 385,065.15

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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.