Home / 908,084.88-1,253,047.40-520,880.24

Finding the Fourth Proportional to 908,084.88, 1,253,047.40 and 520,880.24

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Solution

The fourth proportional to 908,084.88, 1,253,047.40 and 520,880.24 is: 718,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,084.88 : 1,253,047.40 = 520,880.24 : x
  2. Step 2: Convert to fraction form
    908,084.88/1,253,047.40 = 520,880.24/x
  3. Step 3: Cross multiply
    908,084.88x = 1,253,047.40 × 520,880.24
  4. Step 4: Simplify right side
    908,084.88x = 652,687,630,443.38
  5. Step 5: Solve for x
    x = 652,687,630,443.38/908,084.88
  6. Step 6: Final answer
    x = 718,751.79

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Double scale
Find fourth proportional to 908,085.88, 1,253,048.78 and 520,881.24
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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.