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Finding the Fourth Proportional to 459,510.60, 689,265.90 and 223,314.60

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Solution

The fourth proportional to 459,510.60, 689,265.90 and 223,314.60 is: 334,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,510.60 : 689,265.90 = 223,314.60 : x
  2. Step 2: Convert to fraction form
    459,510.60/689,265.90 = 223,314.60/x
  3. Step 3: Cross multiply
    459,510.60x = 689,265.90 × 223,314.60
  4. Step 4: Simplify right side
    459,510.60x = 153,923,138,752.14
  5. Step 5: Solve for x
    x = 153,923,138,752.14/459,510.60
  6. Step 6: Final answer
    x = 334,971.90

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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.