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Finding the Fourth Proportional to 608,130.72, 911,809.71 and 533,400.93

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Solution

The fourth proportional to 608,130.72, 911,809.71 and 533,400.93 is: 799,762.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,130.72 : 911,809.71 = 533,400.93 : x
  2. Step 2: Convert to fraction form
    608,130.72/911,809.71 = 533,400.93/x
  3. Step 3: Cross multiply
    608,130.72x = 911,809.71 × 533,400.93
  4. Step 4: Simplify right side
    608,130.72x = 486,360,147,297.03
  5. Step 5: Solve for x
    x = 486,360,147,297.03/608,130.72
  6. Step 6: Final answer
    x = 799,762.50

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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.