Home / 530,378.94-731,938.48-288,677.17

Finding the Fourth Proportional to 530,378.94, 731,938.48 and 288,677.17

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Solution

The fourth proportional to 530,378.94, 731,938.48 and 288,677.17 is: 398,382.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,378.94 : 731,938.48 = 288,677.17 : x
  2. Step 2: Convert to fraction form
    530,378.94/731,938.48 = 288,677.17/x
  3. Step 3: Cross multiply
    530,378.94x = 731,938.48 × 288,677.17
  4. Step 4: Simplify right side
    530,378.94x = 211,293,925,096.58
  5. Step 5: Solve for x
    x = 211,293,925,096.58/530,378.94
  6. Step 6: Final answer
    x = 398,382.95

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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.