Home / 430,028.13-641,414.08-373,423.11

Finding the Fourth Proportional to 430,028.13, 641,414.08 and 373,423.11

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Solution

The fourth proportional to 430,028.13, 641,414.08 and 373,423.11 is: 556,984.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,028.13 : 641,414.08 = 373,423.11 : x
  2. Step 2: Convert to fraction form
    430,028.13/641,414.08 = 373,423.11/x
  3. Step 3: Cross multiply
    430,028.13x = 641,414.08 × 373,423.11
  4. Step 4: Simplify right side
    430,028.13x = 239,518,838,612.87
  5. Step 5: Solve for x
    x = 239,518,838,612.87/430,028.13
  6. Step 6: Final answer
    x = 556,984.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.