Home / 890,223.04-1,227,838.08-618,291.28

Finding the Fourth Proportional to 890,223.04, 1,227,838.08 and 618,291.28

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Solution

The fourth proportional to 890,223.04, 1,227,838.08 and 618,291.28 is: 852,776.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,223.04 : 1,227,838.08 = 618,291.28 : x
  2. Step 2: Convert to fraction form
    890,223.04/1,227,838.08 = 618,291.28/x
  3. Step 3: Cross multiply
    890,223.04x = 1,227,838.08 × 618,291.28
  4. Step 4: Simplify right side
    890,223.04x = 759,161,578,115.94
  5. Step 5: Solve for x
    x = 759,161,578,115.94/890,223.04
  6. Step 6: Final answer
    x = 852,776.83

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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.