Home / 891,451.32-1,229,903.64-509,207.46

Finding the Fourth Proportional to 891,451.32, 1,229,903.64 and 509,207.46

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Solution

The fourth proportional to 891,451.32, 1,229,903.64 and 509,207.46 is: 702,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,451.32 : 1,229,903.64 = 509,207.46 : x
  2. Step 2: Convert to fraction form
    891,451.32/1,229,903.64 = 509,207.46/x
  3. Step 3: Cross multiply
    891,451.32x = 1,229,903.64 × 509,207.46
  4. Step 4: Simplify right side
    891,451.32x = 626,276,108,569.15
  5. Step 5: Solve for x
    x = 626,276,108,569.15/891,451.32
  6. Step 6: Final answer
    x = 702,535.40

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Double scale
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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.