Home / 663,904.40-994,762.20-382,931.60

Finding the Fourth Proportional to 663,904.40, 994,762.20 and 382,931.60

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Solution

The fourth proportional to 663,904.40, 994,762.20 and 382,931.60 is: 573,766.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,904.40 : 994,762.20 = 382,931.60 : x
  2. Step 2: Convert to fraction form
    663,904.40/994,762.20 = 382,931.60/x
  3. Step 3: Cross multiply
    663,904.40x = 994,762.20 × 382,931.60
  4. Step 4: Simplify right side
    663,904.40x = 380,925,880,865.52
  5. Step 5: Solve for x
    x = 380,925,880,865.52/663,904.40
  6. Step 6: Final answer
    x = 573,766.16

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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.