Home / 623,529.66-859,295.09-451,155.78

Finding the Fourth Proportional to 623,529.66, 859,295.09 and 451,155.78

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Solution

The fourth proportional to 623,529.66, 859,295.09 and 451,155.78 is: 621,744.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,529.66 : 859,295.09 = 451,155.78 : x
  2. Step 2: Convert to fraction form
    623,529.66/859,295.09 = 451,155.78/x
  3. Step 3: Cross multiply
    623,529.66x = 859,295.09 × 451,155.78
  4. Step 4: Simplify right side
    623,529.66x = 387,675,946,579.12
  5. Step 5: Solve for x
    x = 387,675,946,579.12/623,529.66
  6. Step 6: Final answer
    x = 621,744.20

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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.