Home / 623,000.11-859,740.49-336,520.20

Finding the Fourth Proportional to 623,000.11, 859,740.49 and 336,520.20

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Solution

The fourth proportional to 623,000.11, 859,740.49 and 336,520.20 is: 464,398.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,000.11 : 859,740.49 = 336,520.20 : x
  2. Step 2: Convert to fraction form
    623,000.11/859,740.49 = 336,520.20/x
  3. Step 3: Cross multiply
    623,000.11x = 859,740.49 × 336,520.20
  4. Step 4: Simplify right side
    623,000.11x = 289,320,038,506.75
  5. Step 5: Solve for x
    x = 289,320,038,506.75/623,000.11
  6. Step 6: Final answer
    x = 464,398.05

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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.