Home / 679,639.75-936,964.67-542,285.21

Finding the Fourth Proportional to 679,639.75, 936,964.67 and 542,285.21

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Solution

The fourth proportional to 679,639.75, 936,964.67 and 542,285.21 is: 747,605.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,639.75 : 936,964.67 = 542,285.21 : x
  2. Step 2: Convert to fraction form
    679,639.75/936,964.67 = 542,285.21/x
  3. Step 3: Cross multiply
    679,639.75x = 936,964.67 × 542,285.21
  4. Step 4: Simplify right side
    679,639.75x = 508,102,082,464.52
  5. Step 5: Solve for x
    x = 508,102,082,464.52/679,639.75
  6. Step 6: Final answer
    x = 747,605.01

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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.