Home / 712,870.17-983,723.23-406,934.38

Finding the Fourth Proportional to 712,870.17, 983,723.23 and 406,934.38

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Solution

The fourth proportional to 712,870.17, 983,723.23 and 406,934.38 is: 561,547.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,870.17 : 983,723.23 = 406,934.38 : x
  2. Step 2: Convert to fraction form
    712,870.17/983,723.23 = 406,934.38/x
  3. Step 3: Cross multiply
    712,870.17x = 983,723.23 × 406,934.38
  4. Step 4: Simplify right side
    712,870.17x = 400,310,802,691.65
  5. Step 5: Solve for x
    x = 400,310,802,691.65/712,870.17
  6. Step 6: Final answer
    x = 561,547.98

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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.