Home / 621,825.60-933,429.60-385,435.20

Finding the Fourth Proportional to 621,825.60, 933,429.60 and 385,435.20

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Solution

The fourth proportional to 621,825.60, 933,429.60 and 385,435.20 is: 578,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,825.60 : 933,429.60 = 385,435.20 : x
  2. Step 2: Convert to fraction form
    621,825.60/933,429.60 = 385,435.20/x
  3. Step 3: Cross multiply
    621,825.60x = 933,429.60 × 385,435.20
  4. Step 4: Simplify right side
    621,825.60x = 359,776,624,561.92
  5. Step 5: Solve for x
    x = 359,776,624,561.92/621,825.60
  6. Step 6: Final answer
    x = 578,581.24

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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.