Home / 707,719.97-976,681.20-401,824.81

Finding the Fourth Proportional to 707,719.97, 976,681.20 and 401,824.81

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Solution

The fourth proportional to 707,719.97, 976,681.20 and 401,824.81 is: 554,533.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,719.97 : 976,681.20 = 401,824.81 : x
  2. Step 2: Convert to fraction form
    707,719.97/976,681.20 = 401,824.81/x
  3. Step 3: Cross multiply
    707,719.97x = 976,681.20 × 401,824.81
  4. Step 4: Simplify right side
    707,719.97x = 392,454,730,728.04
  5. Step 5: Solve for x
    x = 392,454,730,728.04/707,719.97
  6. Step 6: Final answer
    x = 554,533.93

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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.