Home / 712,605.12-983,150.96-406,461.52

Finding the Fourth Proportional to 712,605.12, 983,150.96 and 406,461.52

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Solution

The fourth proportional to 712,605.12, 983,150.96 and 406,461.52 is: 560,777.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,605.12 : 983,150.96 = 406,461.52 : x
  2. Step 2: Convert to fraction form
    712,605.12/983,150.96 = 406,461.52/x
  3. Step 3: Cross multiply
    712,605.12x = 983,150.96 × 406,461.52
  4. Step 4: Simplify right side
    712,605.12x = 399,613,033,591.06
  5. Step 5: Solve for x
    x = 399,613,033,591.06/712,605.12
  6. Step 6: Final answer
    x = 560,777.66

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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.