Home / 644,583.29-888,915.21-423,430.13

Finding the Fourth Proportional to 644,583.29, 888,915.21 and 423,430.13

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Solution

The fourth proportional to 644,583.29, 888,915.21 and 423,430.13 is: 583,933.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,583.29 : 888,915.21 = 423,430.13 : x
  2. Step 2: Convert to fraction form
    644,583.29/888,915.21 = 423,430.13/x
  3. Step 3: Cross multiply
    644,583.29x = 888,915.21 × 423,430.13
  4. Step 4: Simplify right side
    644,583.29x = 376,393,482,929.28
  5. Step 5: Solve for x
    x = 376,393,482,929.28/644,583.29
  6. Step 6: Final answer
    x = 583,933.04

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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.