Home / 688,052.60-1,030,005.30-605,108.60

Finding the Fourth Proportional to 688,052.60, 1,030,005.30 and 605,108.60

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Solution

The fourth proportional to 688,052.60, 1,030,005.30 and 605,108.60 is: 905,839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,052.60 : 1,030,005.30 = 605,108.60 : x
  2. Step 2: Convert to fraction form
    688,052.60/1,030,005.30 = 605,108.60/x
  3. Step 3: Cross multiply
    688,052.60x = 1,030,005.30 × 605,108.60
  4. Step 4: Simplify right side
    688,052.60x = 623,265,065,075.58
  5. Step 5: Solve for x
    x = 623,265,065,075.58/688,052.60
  6. Step 6: Final answer
    x = 905,839.27

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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.