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Finding the Fourth Proportional to 404,534.40, 607,300.80 and 254,774.40

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Solution

The fourth proportional to 404,534.40, 607,300.80 and 254,774.40 is: 382,475.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,534.40 : 607,300.80 = 254,774.40 : x
  2. Step 2: Convert to fraction form
    404,534.40/607,300.80 = 254,774.40/x
  3. Step 3: Cross multiply
    404,534.40x = 607,300.80 × 254,774.40
  4. Step 4: Simplify right side
    404,534.40x = 154,724,696,939.52
  5. Step 5: Solve for x
    x = 154,724,696,939.52/404,534.40
  6. Step 6: Final answer
    x = 382,475.99

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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.