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Finding the Fourth Proportional to 511,592.40, 705,812.40 and 296,614.08

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Solution

The fourth proportional to 511,592.40, 705,812.40 and 296,614.08 is: 409,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,592.40 : 705,812.40 = 296,614.08 : x
  2. Step 2: Convert to fraction form
    511,592.40/705,812.40 = 296,614.08/x
  3. Step 3: Cross multiply
    511,592.40x = 705,812.40 × 296,614.08
  4. Step 4: Simplify right side
    511,592.40x = 209,353,895,678.59
  5. Step 5: Solve for x
    x = 209,353,895,678.59/511,592.40
  6. Step 6: Final answer
    x = 409,220.11

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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.