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Finding the Fourth Proportional to 506,346.40, 758,855.20 and 372,600.40

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Solution

The fourth proportional to 506,346.40, 758,855.20 and 372,600.40 is: 558,411.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,346.40 : 758,855.20 = 372,600.40 : x
  2. Step 2: Convert to fraction form
    506,346.40/758,855.20 = 372,600.40/x
  3. Step 3: Cross multiply
    506,346.40x = 758,855.20 × 372,600.40
  4. Step 4: Simplify right side
    506,346.40x = 282,749,751,062.08
  5. Step 5: Solve for x
    x = 282,749,751,062.08/506,346.40
  6. Step 6: Final answer
    x = 558,411.69

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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.