Home / 716,553.12-988,738.96-430,012.32

Finding the Fourth Proportional to 716,553.12, 988,738.96 and 430,012.32

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Solution

The fourth proportional to 716,553.12, 988,738.96 and 430,012.32 is: 593,354.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,553.12 : 988,738.96 = 430,012.32 : x
  2. Step 2: Convert to fraction form
    716,553.12/988,738.96 = 430,012.32/x
  3. Step 3: Cross multiply
    716,553.12x = 988,738.96 × 430,012.32
  4. Step 4: Simplify right side
    716,553.12x = 425,169,934,063.99
  5. Step 5: Solve for x
    x = 425,169,934,063.99/716,553.12
  6. Step 6: Final answer
    x = 593,354.38

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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.