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Finding the Fourth Proportional to 555,070.37, 766,015.67 and 340,168.93

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Solution

The fourth proportional to 555,070.37, 766,015.67 and 340,168.93 is: 469,444.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,070.37 : 766,015.67 = 340,168.93 : x
  2. Step 2: Convert to fraction form
    555,070.37/766,015.67 = 340,168.93/x
  3. Step 3: Cross multiply
    555,070.37x = 766,015.67 × 340,168.93
  4. Step 4: Simplify right side
    555,070.37x = 260,574,729,762.52
  5. Step 5: Solve for x
    x = 260,574,729,762.52/555,070.37
  6. Step 6: Final answer
    x = 469,444.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.