Home / 669,056.42-922,877.89-396,931.66

Finding the Fourth Proportional to 669,056.42, 922,877.89 and 396,931.66

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Solution

The fourth proportional to 669,056.42, 922,877.89 and 396,931.66 is: 547,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,056.42 : 922,877.89 = 396,931.66 : x
  2. Step 2: Convert to fraction form
    669,056.42/922,877.89 = 396,931.66/x
  3. Step 3: Cross multiply
    669,056.42x = 922,877.89 × 396,931.66
  4. Step 4: Simplify right side
    669,056.42x = 366,319,449,555.47
  5. Step 5: Solve for x
    x = 366,319,449,555.47/669,056.42
  6. Step 6: Final answer
    x = 547,516.53

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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.