Home / 623,555.76-859,933.08-408,617.76

Finding the Fourth Proportional to 623,555.76, 859,933.08 and 408,617.76

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Solution

The fourth proportional to 623,555.76, 859,933.08 and 408,617.76 is: 563,516.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,555.76 : 859,933.08 = 408,617.76 : x
  2. Step 2: Convert to fraction form
    623,555.76/859,933.08 = 408,617.76/x
  3. Step 3: Cross multiply
    623,555.76x = 859,933.08 × 408,617.76
  4. Step 4: Simplify right side
    623,555.76x = 351,383,928,899.50
  5. Step 5: Solve for x
    x = 351,383,928,899.50/623,555.76
  6. Step 6: Final answer
    x = 563,516.45

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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.