Home / 623,566.38-859,947.74-408,628.38

Finding the Fourth Proportional to 623,566.38, 859,947.74 and 408,628.38

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Solution

The fourth proportional to 623,566.38, 859,947.74 and 408,628.38 is: 563,531.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,566.38 : 859,947.74 = 408,628.38 : x
  2. Step 2: Convert to fraction form
    623,566.38/859,947.74 = 408,628.38/x
  3. Step 3: Cross multiply
    623,566.38x = 859,947.74 × 408,628.38
  4. Step 4: Simplify right side
    623,566.38x = 351,399,051,880.86
  5. Step 5: Solve for x
    x = 351,399,051,880.86/623,566.38
  6. Step 6: Final answer
    x = 563,531.11

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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.