Home / 626,985.84-940,478.76-206,148.72

Finding the Fourth Proportional to 626,985.84, 940,478.76 and 206,148.72

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Solution

The fourth proportional to 626,985.84, 940,478.76 and 206,148.72 is: 309,223.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,985.84 : 940,478.76 = 206,148.72 : x
  2. Step 2: Convert to fraction form
    626,985.84/940,478.76 = 206,148.72/x
  3. Step 3: Cross multiply
    626,985.84x = 940,478.76 × 206,148.72
  4. Step 4: Simplify right side
    626,985.84x = 193,878,492,561.19
  5. Step 5: Solve for x
    x = 193,878,492,561.19/626,985.84
  6. Step 6: Final answer
    x = 309,223.08

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Double scale
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Similar ratio
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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.