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Finding the Fourth Proportional to 607,128.40, 910,736.80 and 233,151.40

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Solution

The fourth proportional to 607,128.40, 910,736.80 and 233,151.40 is: 349,744.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,128.40 : 910,736.80 = 233,151.40 : x
  2. Step 2: Convert to fraction form
    607,128.40/910,736.80 = 233,151.40/x
  3. Step 3: Cross multiply
    607,128.40x = 910,736.80 × 233,151.40
  4. Step 4: Simplify right side
    607,128.40x = 212,339,559,951.52
  5. Step 5: Solve for x
    x = 212,339,559,951.52/607,128.40
  6. Step 6: Final answer
    x = 349,744.07

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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.