Home / 623,624.60-936,128.10-387,234.20

Finding the Fourth Proportional to 623,624.60, 936,128.10 and 387,234.20

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Solution

The fourth proportional to 623,624.60, 936,128.10 and 387,234.20 is: 581,280.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,624.60 : 936,128.10 = 387,234.20 : x
  2. Step 2: Convert to fraction form
    623,624.60/936,128.10 = 387,234.20/x
  3. Step 3: Cross multiply
    623,624.60x = 936,128.10 × 387,234.20
  4. Step 4: Simplify right side
    623,624.60x = 362,500,815,901.02
  5. Step 5: Solve for x
    x = 362,500,815,901.02/623,624.60
  6. Step 6: Final answer
    x = 581,280.49

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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.