Home / 921,957.89-1,272,236.90-514,042.29

Finding the Fourth Proportional to 921,957.89, 1,272,236.90 and 514,042.29

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Solution

The fourth proportional to 921,957.89, 1,272,236.90 and 514,042.29 is: 709,342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,957.89 : 1,272,236.90 = 514,042.29 : x
  2. Step 2: Convert to fraction form
    921,957.89/1,272,236.90 = 514,042.29/x
  3. Step 3: Cross multiply
    921,957.89x = 1,272,236.90 × 514,042.29
  4. Step 4: Simplify right side
    921,957.89x = 653,983,566,928.29
  5. Step 5: Solve for x
    x = 653,983,566,928.29/921,957.89
  6. Step 6: Final answer
    x = 709,342.13

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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.