Home / 659,839.90-990,962.70-577,171.30

Finding the Fourth Proportional to 659,839.90, 990,962.70 and 577,171.30

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Solution

The fourth proportional to 659,839.90, 990,962.70 and 577,171.30 is: 866,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,839.90 : 990,962.70 = 577,171.30 : x
  2. Step 2: Convert to fraction form
    659,839.90/990,962.70 = 577,171.30/x
  3. Step 3: Cross multiply
    659,839.90x = 990,962.70 × 577,171.30
  4. Step 4: Simplify right side
    659,839.90x = 571,955,229,810.51
  5. Step 5: Solve for x
    x = 571,955,229,810.51/659,839.90
  6. Step 6: Final answer
    x = 866,809.10

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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.