Home / 876,787.10-1,209,873.84-509,192.50

Finding the Fourth Proportional to 876,787.10, 1,209,873.84 and 509,192.50

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Solution

The fourth proportional to 876,787.10, 1,209,873.84 and 509,192.50 is: 702,632.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,787.10 : 1,209,873.84 = 509,192.50 : x
  2. Step 2: Convert to fraction form
    876,787.10/1,209,873.84 = 509,192.50/x
  3. Step 3: Cross multiply
    876,787.10x = 1,209,873.84 × 509,192.50
  4. Step 4: Simplify right side
    876,787.10x = 616,058,685,274.20
  5. Step 5: Solve for x
    x = 616,058,685,274.20/876,787.10
  6. Step 6: Final answer
    x = 702,632.01

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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.