Home / 712,697.58-983,538.50-406,767.78

Finding the Fourth Proportional to 712,697.58, 983,538.50 and 406,767.78

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Solution

The fourth proportional to 712,697.58, 983,538.50 and 406,767.78 is: 561,348.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,697.58 : 983,538.50 = 406,767.78 : x
  2. Step 2: Convert to fraction form
    712,697.58/983,538.50 = 406,767.78/x
  3. Step 3: Cross multiply
    712,697.58x = 983,538.50 × 406,767.78
  4. Step 4: Simplify right side
    712,697.58x = 400,071,772,189.53
  5. Step 5: Solve for x
    x = 400,071,772,189.53/712,697.58
  6. Step 6: Final answer
    x = 561,348.58

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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.