Home / 971,036.31-1,340,109.87-535,538.83

Finding the Fourth Proportional to 971,036.31, 1,340,109.87 and 535,538.83

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Solution

The fourth proportional to 971,036.31, 1,340,109.87 and 535,538.83 is: 739,087.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,036.31 : 1,340,109.87 = 535,538.83 : x
  2. Step 2: Convert to fraction form
    971,036.31/1,340,109.87 = 535,538.83/x
  3. Step 3: Cross multiply
    971,036.31x = 1,340,109.87 × 535,538.83
  4. Step 4: Simplify right side
    971,036.31x = 717,680,871,851.25
  5. Step 5: Solve for x
    x = 717,680,871,851.25/971,036.31
  6. Step 6: Final answer
    x = 739,087.58

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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.