Home / 666,292.18-919,483.35-375,965.36

Finding the Fourth Proportional to 666,292.18, 919,483.35 and 375,965.36

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Solution

The fourth proportional to 666,292.18, 919,483.35 and 375,965.36 is: 518,832.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,292.18 : 919,483.35 = 375,965.36 : x
  2. Step 2: Convert to fraction form
    666,292.18/919,483.35 = 375,965.36/x
  3. Step 3: Cross multiply
    666,292.18x = 919,483.35 × 375,965.36
  4. Step 4: Simplify right side
    666,292.18x = 345,693,891,935.38
  5. Step 5: Solve for x
    x = 345,693,891,935.38/666,292.18
  6. Step 6: Final answer
    x = 518,832.28

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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.