Home / 905,485.58-1,249,297.60-542,777.09

Finding the Fourth Proportional to 905,485.58, 1,249,297.60 and 542,777.09

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Solution

The fourth proportional to 905,485.58, 1,249,297.60 and 542,777.09 is: 748,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,485.58 : 1,249,297.60 = 542,777.09 : x
  2. Step 2: Convert to fraction form
    905,485.58/1,249,297.60 = 542,777.09/x
  3. Step 3: Cross multiply
    905,485.58x = 1,249,297.60 × 542,777.09
  4. Step 4: Simplify right side
    905,485.58x = 678,090,121,353.77
  5. Step 5: Solve for x
    x = 678,090,121,353.77/905,485.58
  6. Step 6: Final answer
    x = 748,869.05

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Double scale
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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.