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Finding the Fourth Proportional to 712,566.04, 983,357.05 and 406,636.33

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Solution

The fourth proportional to 712,566.04, 983,357.05 and 406,636.33 is: 561,167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,566.04 : 983,357.05 = 406,636.33 : x
  2. Step 2: Convert to fraction form
    712,566.04/983,357.05 = 406,636.33/x
  3. Step 3: Cross multiply
    712,566.04x = 983,357.05 × 406,636.33
  4. Step 4: Simplify right side
    712,566.04x = 399,868,701,891.63
  5. Step 5: Solve for x
    x = 399,868,701,891.63/712,566.04
  6. Step 6: Final answer
    x = 561,167.22

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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.