Home / 891,622.36-1,230,438.72-509,657.34

Finding the Fourth Proportional to 891,622.36, 1,230,438.72 and 509,657.34

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Solution

The fourth proportional to 891,622.36, 1,230,438.72 and 509,657.34 is: 703,327.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,622.36 : 1,230,438.72 = 509,657.34 : x
  2. Step 2: Convert to fraction form
    891,622.36/1,230,438.72 = 509,657.34/x
  3. Step 3: Cross multiply
    891,622.36x = 1,230,438.72 × 509,657.34
  4. Step 4: Simplify right side
    891,622.36x = 627,102,125,068.21
  5. Step 5: Solve for x
    x = 627,102,125,068.21/891,622.36
  6. Step 6: Final answer
    x = 703,327.05

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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.