Home / 389,560.32-537,281.64-268,673.76

Finding the Fourth Proportional to 389,560.32, 537,281.64 and 268,673.76

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Solution

The fourth proportional to 389,560.32, 537,281.64 and 268,673.76 is: 370,554.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,560.32 : 537,281.64 = 268,673.76 : x
  2. Step 2: Convert to fraction form
    389,560.32/537,281.64 = 268,673.76/x
  3. Step 3: Cross multiply
    389,560.32x = 537,281.64 × 268,673.76
  4. Step 4: Simplify right side
    389,560.32x = 144,353,478,397.77
  5. Step 5: Solve for x
    x = 144,353,478,397.77/389,560.32
  6. Step 6: Final answer
    x = 370,554.88

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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.