Home / 711,479.04-981,828.18-389,186.32

Finding the Fourth Proportional to 711,479.04, 981,828.18 and 389,186.32

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Solution

The fourth proportional to 711,479.04, 981,828.18 and 389,186.32 is: 537,070.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,479.04 : 981,828.18 = 389,186.32 : x
  2. Step 2: Convert to fraction form
    711,479.04/981,828.18 = 389,186.32/x
  3. Step 3: Cross multiply
    711,479.04x = 981,828.18 × 389,186.32
  4. Step 4: Simplify right side
    711,479.04x = 382,114,096,246.50
  5. Step 5: Solve for x
    x = 382,114,096,246.50/711,479.04
  6. Step 6: Final answer
    x = 537,070.07

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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.