Home / 718,436.37-991,585.74-412,722.62

Finding the Fourth Proportional to 718,436.37, 991,585.74 and 412,722.62

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Solution

The fourth proportional to 718,436.37, 991,585.74 and 412,722.62 is: 569,639.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,436.37 : 991,585.74 = 412,722.62 : x
  2. Step 2: Convert to fraction form
    718,436.37/991,585.74 = 412,722.62/x
  3. Step 3: Cross multiply
    718,436.37x = 991,585.74 × 412,722.62
  4. Step 4: Simplify right side
    718,436.37x = 409,249,868,594.11
  5. Step 5: Solve for x
    x = 409,249,868,594.11/718,436.37
  6. Step 6: Final answer
    x = 569,639.69

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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.