Home / 669,746.37-923,715.45-440,539.05

Finding the Fourth Proportional to 669,746.37, 923,715.45 and 440,539.05

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Solution

The fourth proportional to 669,746.37, 923,715.45 and 440,539.05 is: 607,592.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,746.37 : 923,715.45 = 440,539.05 : x
  2. Step 2: Convert to fraction form
    669,746.37/923,715.45 = 440,539.05/x
  3. Step 3: Cross multiply
    669,746.37x = 923,715.45 × 440,539.05
  4. Step 4: Simplify right side
    669,746.37x = 406,932,726,813.32
  5. Step 5: Solve for x
    x = 406,932,726,813.32/669,746.37
  6. Step 6: Final answer
    x = 607,592.28

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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.