Home / 620,975.16-856,444.50-416,964.60

Finding the Fourth Proportional to 620,975.16, 856,444.50 and 416,964.60

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Solution

The fourth proportional to 620,975.16, 856,444.50 and 416,964.60 is: 575,074.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,975.16 : 856,444.50 = 416,964.60 : x
  2. Step 2: Convert to fraction form
    620,975.16/856,444.50 = 416,964.60/x
  3. Step 3: Cross multiply
    620,975.16x = 856,444.50 × 416,964.60
  4. Step 4: Simplify right side
    620,975.16x = 357,107,038,364.70
  5. Step 5: Solve for x
    x = 357,107,038,364.70/620,975.16
  6. Step 6: Final answer
    x = 575,074.59

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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.