Home / 688,220.10-1,030,256.55-605,276.10

Finding the Fourth Proportional to 688,220.10, 1,030,256.55 and 605,276.10

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Solution

The fourth proportional to 688,220.10, 1,030,256.55 and 605,276.10 is: 906,090.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,220.10 : 1,030,256.55 = 605,276.10 : x
  2. Step 2: Convert to fraction form
    688,220.10/1,030,256.55 = 605,276.10/x
  3. Step 3: Cross multiply
    688,220.10x = 1,030,256.55 × 605,276.10
  4. Step 4: Simplify right side
    688,220.10x = 623,589,666,583.46
  5. Step 5: Solve for x
    x = 623,589,666,583.46/688,220.10
  6. Step 6: Final answer
    x = 906,090.46

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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.