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Finding the Fourth Proportional to 504,921.84, 696,853.80 and 290,061.44

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Solution

The fourth proportional to 504,921.84, 696,853.80 and 290,061.44 is: 400,320.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,921.84 : 696,853.80 = 290,061.44 : x
  2. Step 2: Convert to fraction form
    504,921.84/696,853.80 = 290,061.44/x
  3. Step 3: Cross multiply
    504,921.84x = 696,853.80 × 290,061.44
  4. Step 4: Simplify right side
    504,921.84x = 202,130,416,697.47
  5. Step 5: Solve for x
    x = 202,130,416,697.47/504,921.84
  6. Step 6: Final answer
    x = 400,320.21

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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.