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Finding the Fourth Proportional to 434,825.40, 607,511.40 and 434,825.40

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Solution

The fourth proportional to 434,825.40, 607,511.40 and 434,825.40 is: 607,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,825.40 : 607,511.40 = 434,825.40 : x
  2. Step 2: Convert to fraction form
    434,825.40/607,511.40 = 434,825.40/x
  3. Step 3: Cross multiply
    434,825.40x = 607,511.40 × 434,825.40
  4. Step 4: Simplify right side
    434,825.40x = 264,161,387,509.56
  5. Step 5: Solve for x
    x = 264,161,387,509.56/434,825.40
  6. Step 6: Final answer
    x = 607,511.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.