Home / 683,333.20-1,024,999.80-459,384.40

Finding the Fourth Proportional to 683,333.20, 1,024,999.80 and 459,384.40

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Solution

The fourth proportional to 683,333.20, 1,024,999.80 and 459,384.40 is: 689,076.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,333.20 : 1,024,999.80 = 459,384.40 : x
  2. Step 2: Convert to fraction form
    683,333.20/1,024,999.80 = 459,384.40/x
  3. Step 3: Cross multiply
    683,333.20x = 1,024,999.80 × 459,384.40
  4. Step 4: Simplify right side
    683,333.20x = 470,868,918,123.12
  5. Step 5: Solve for x
    x = 470,868,918,123.12/683,333.20
  6. Step 6: Final answer
    x = 689,076.60

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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.