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Finding the Fourth Proportional to 405,751.40, 607,244.70 and 405,751.40

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Solution

The fourth proportional to 405,751.40, 607,244.70 and 405,751.40 is: 607,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,751.40 : 607,244.70 = 405,751.40 : x
  2. Step 2: Convert to fraction form
    405,751.40/607,244.70 = 405,751.40/x
  3. Step 3: Cross multiply
    405,751.40x = 607,244.70 × 405,751.40
  4. Step 4: Simplify right side
    405,751.40x = 246,390,387,167.58
  5. Step 5: Solve for x
    x = 246,390,387,167.58/405,751.40
  6. Step 6: Final answer
    x = 607,244.70

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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.