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Finding the Fourth Proportional to 315,151.35, 472,332.83 and 157,423.83

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Solution

The fourth proportional to 315,151.35, 472,332.83 and 157,423.83 is: 235,938.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,151.35 : 472,332.83 = 157,423.83 : x
  2. Step 2: Convert to fraction form
    315,151.35/472,332.83 = 157,423.83/x
  3. Step 3: Cross multiply
    315,151.35x = 472,332.83 × 157,423.83
  4. Step 4: Simplify right side
    315,151.35x = 74,356,442,346.22
  5. Step 5: Solve for x
    x = 74,356,442,346.22/315,151.35
  6. Step 6: Final answer
    x = 235,938.83

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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.