Home / 712,867.36-983,719.35-406,931.57

Finding the Fourth Proportional to 712,867.36, 983,719.35 and 406,931.57

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Solution

The fourth proportional to 712,867.36, 983,719.35 and 406,931.57 is: 561,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,867.36 : 983,719.35 = 406,931.57 : x
  2. Step 2: Convert to fraction form
    712,867.36/983,719.35 = 406,931.57/x
  3. Step 3: Cross multiply
    712,867.36x = 983,719.35 × 406,931.57
  4. Step 4: Simplify right side
    712,867.36x = 400,306,459,534.88
  5. Step 5: Solve for x
    x = 400,306,459,534.88/712,867.36
  6. Step 6: Final answer
    x = 561,544.10

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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.