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Finding the Fourth Proportional to 555,075.25, 766,022.40 and 340,173.81

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Solution

The fourth proportional to 555,075.25, 766,022.40 and 340,173.81 is: 469,451.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,075.25 : 766,022.40 = 340,173.81 : x
  2. Step 2: Convert to fraction form
    555,075.25/766,022.40 = 340,173.81/x
  3. Step 3: Cross multiply
    555,075.25x = 766,022.40 × 340,173.81
  4. Step 4: Simplify right side
    555,075.25x = 260,580,758,353.34
  5. Step 5: Solve for x
    x = 260,580,758,353.34/555,075.25
  6. Step 6: Final answer
    x = 469,451.23

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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.