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Finding the Fourth Proportional to 940,907.53, 1,411,362.39 and 257,800.16

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Solution

The fourth proportional to 940,907.53, 1,411,362.39 and 257,800.16 is: 386,700.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,907.53 : 1,411,362.39 = 257,800.16 : x
  2. Step 2: Convert to fraction form
    940,907.53/1,411,362.39 = 257,800.16/x
  3. Step 3: Cross multiply
    940,907.53x = 1,411,362.39 × 257,800.16
  4. Step 4: Simplify right side
    940,907.53x = 363,849,449,959.98
  5. Step 5: Solve for x
    x = 363,849,449,959.98/940,907.53
  6. Step 6: Final answer
    x = 386,700.54

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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.