Home / 712,566.53-983,331.66-406,739.80

Finding the Fourth Proportional to 712,566.53, 983,331.66 and 406,739.80

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Solution

The fourth proportional to 712,566.53, 983,331.66 and 406,739.80 is: 561,295.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,566.53 : 983,331.66 = 406,739.80 : x
  2. Step 2: Convert to fraction form
    712,566.53/983,331.66 = 406,739.80/x
  3. Step 3: Cross multiply
    712,566.53x = 983,331.66 × 406,739.80
  4. Step 4: Simplify right side
    712,566.53x = 399,960,119,945.27
  5. Step 5: Solve for x
    x = 399,960,119,945.27/712,566.53
  6. Step 6: Final answer
    x = 561,295.12

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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.