Home / 630,105.04-869,596.64-358,258.24

Finding the Fourth Proportional to 630,105.04, 869,596.64 and 358,258.24

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Solution

The fourth proportional to 630,105.04, 869,596.64 and 358,258.24 is: 494,425.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,105.04 : 869,596.64 = 358,258.24 : x
  2. Step 2: Convert to fraction form
    630,105.04/869,596.64 = 358,258.24/x
  3. Step 3: Cross multiply
    630,105.04x = 869,596.64 × 358,258.24
  4. Step 4: Simplify right side
    630,105.04x = 311,540,161,756.31
  5. Step 5: Solve for x
    x = 311,540,161,756.31/630,105.04
  6. Step 6: Final answer
    x = 494,425.76

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Double scale
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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.