Home / 772,001.28-1,157,276.16-416,482.56

Finding the Fourth Proportional to 772,001.28, 1,157,276.16 and 416,482.56

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Solution

The fourth proportional to 772,001.28, 1,157,276.16 and 416,482.56 is: 624,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,001.28 : 1,157,276.16 = 416,482.56 : x
  2. Step 2: Convert to fraction form
    772,001.28/1,157,276.16 = 416,482.56/x
  3. Step 3: Cross multiply
    772,001.28x = 1,157,276.16 × 416,482.56
  4. Step 4: Simplify right side
    772,001.28x = 481,985,337,743.77
  5. Step 5: Solve for x
    x = 481,985,337,743.77/772,001.28
  6. Step 6: Final answer
    x = 624,332.30

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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.