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Finding the Fourth Proportional to 575,423.70, 863,135.55 and 148,958.70

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Solution

The fourth proportional to 575,423.70, 863,135.55 and 148,958.70 is: 223,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,423.70 : 863,135.55 = 148,958.70 : x
  2. Step 2: Convert to fraction form
    575,423.70/863,135.55 = 148,958.70/x
  3. Step 3: Cross multiply
    575,423.70x = 863,135.55 × 148,958.70
  4. Step 4: Simplify right side
    575,423.70x = 128,571,549,451.79
  5. Step 5: Solve for x
    x = 128,571,549,451.79/575,423.70
  6. Step 6: Final answer
    x = 223,438.05

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Double scale
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Similar ratio
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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.