Home / 637,939.75-879,765.53-465,584.72

Finding the Fourth Proportional to 637,939.75, 879,765.53 and 465,584.72

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Solution

The fourth proportional to 637,939.75, 879,765.53 and 465,584.72 is: 642,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,939.75 : 879,765.53 = 465,584.72 : x
  2. Step 2: Convert to fraction form
    637,939.75/879,765.53 = 465,584.72/x
  3. Step 3: Cross multiply
    637,939.75x = 879,765.53 × 465,584.72
  4. Step 4: Simplify right side
    637,939.75x = 409,605,385,007.75
  5. Step 5: Solve for x
    x = 409,605,385,007.75/637,939.75
  6. Step 6: Final answer
    x = 642,075.35

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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.