Home / 676,927.48-934,127.78-405,145.08

Finding the Fourth Proportional to 676,927.48, 934,127.78 and 405,145.08

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Solution

The fourth proportional to 676,927.48, 934,127.78 and 405,145.08 is: 559,080.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,927.48 : 934,127.78 = 405,145.08 : x
  2. Step 2: Convert to fraction form
    676,927.48/934,127.78 = 405,145.08/x
  3. Step 3: Cross multiply
    676,927.48x = 934,127.78 × 405,145.08
  4. Step 4: Simplify right side
    676,927.48x = 378,457,274,158.32
  5. Step 5: Solve for x
    x = 378,457,274,158.32/676,927.48
  6. Step 6: Final answer
    x = 559,080.97

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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.