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Finding the Fourth Proportional to 659,907.14, 910,671.85 and 358,101.14

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Solution

The fourth proportional to 659,907.14, 910,671.85 and 358,101.14 is: 494,179.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,907.14 : 910,671.85 = 358,101.14 : x
  2. Step 2: Convert to fraction form
    659,907.14/910,671.85 = 358,101.14/x
  3. Step 3: Cross multiply
    659,907.14x = 910,671.85 × 358,101.14
  4. Step 4: Simplify right side
    659,907.14x = 326,112,627,650.91
  5. Step 5: Solve for x
    x = 326,112,627,650.91/659,907.14
  6. Step 6: Final answer
    x = 494,179.57

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.