Home / 688,462.12-950,166.66-386,656.12

Finding the Fourth Proportional to 688,462.12, 950,166.66 and 386,656.12

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Solution

The fourth proportional to 688,462.12, 950,166.66 and 386,656.12 is: 533,635.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,462.12 : 950,166.66 = 386,656.12 : x
  2. Step 2: Convert to fraction form
    688,462.12/950,166.66 = 386,656.12/x
  3. Step 3: Cross multiply
    688,462.12x = 950,166.66 × 386,656.12
  4. Step 4: Simplify right side
    688,462.12x = 367,387,754,108.96
  5. Step 5: Solve for x
    x = 367,387,754,108.96/688,462.12
  6. Step 6: Final answer
    x = 533,635.39

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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.