Home / 389,569.65-537,604.06-217,477.59

Finding the Fourth Proportional to 389,569.65, 537,604.06 and 217,477.59

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Solution

The fourth proportional to 389,569.65, 537,604.06 and 217,477.59 is: 300,117.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,569.65 : 537,604.06 = 217,477.59 : x
  2. Step 2: Convert to fraction form
    389,569.65/537,604.06 = 217,477.59/x
  3. Step 3: Cross multiply
    389,569.65x = 537,604.06 × 217,477.59
  4. Step 4: Simplify right side
    389,569.65x = 116,916,835,343.02
  5. Step 5: Solve for x
    x = 116,916,835,343.02/389,569.65
  6. Step 6: Final answer
    x = 300,117.93

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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.