Home / 712,630.65-983,377.08-406,698.51

Finding the Fourth Proportional to 712,630.65, 983,377.08 and 406,698.51

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Solution

The fourth proportional to 712,630.65, 983,377.08 and 406,698.51 is: 561,213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,630.65 : 983,377.08 = 406,698.51 : x
  2. Step 2: Convert to fraction form
    712,630.65/983,377.08 = 406,698.51/x
  3. Step 3: Cross multiply
    712,630.65x = 983,377.08 × 406,698.51
  4. Step 4: Simplify right side
    712,630.65x = 399,937,993,204.15
  5. Step 5: Solve for x
    x = 399,937,993,204.15/712,630.65
  6. Step 6: Final answer
    x = 561,213.57

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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.