Home / 514,916.80-710,546.40-288,518.56

Finding the Fourth Proportional to 514,916.80, 710,546.40 and 288,518.56

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Solution

The fourth proportional to 514,916.80, 710,546.40 and 288,518.56 is: 398,133.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,916.80 : 710,546.40 = 288,518.56 : x
  2. Step 2: Convert to fraction form
    514,916.80/710,546.40 = 288,518.56/x
  3. Step 3: Cross multiply
    514,916.80x = 710,546.40 × 288,518.56
  4. Step 4: Simplify right side
    514,916.80x = 205,005,824,141.18
  5. Step 5: Solve for x
    x = 205,005,824,141.18/514,916.80
  6. Step 6: Final answer
    x = 398,133.88

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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.