Home / 758,882.80-1,047,258.65-419,351.05

Finding the Fourth Proportional to 758,882.80, 1,047,258.65 and 419,351.05

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Solution

The fourth proportional to 758,882.80, 1,047,258.65 and 419,351.05 is: 578,704.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,882.80 : 1,047,258.65 = 419,351.05 : x
  2. Step 2: Convert to fraction form
    758,882.80/1,047,258.65 = 419,351.05/x
  3. Step 3: Cross multiply
    758,882.80x = 1,047,258.65 × 419,351.05
  4. Step 4: Simplify right side
    758,882.80x = 439,169,014,499.08
  5. Step 5: Solve for x
    x = 439,169,014,499.08/758,882.80
  6. Step 6: Final answer
    x = 578,704.66

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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.