Home / 708,476.36-977,677.90-386,192.76

Finding the Fourth Proportional to 708,476.36, 977,677.90 and 386,192.76

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Solution

The fourth proportional to 708,476.36, 977,677.90 and 386,192.76 is: 532,935.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,476.36 : 977,677.90 = 386,192.76 : x
  2. Step 2: Convert to fraction form
    708,476.36/977,677.90 = 386,192.76/x
  3. Step 3: Cross multiply
    708,476.36x = 977,677.90 × 386,192.76
  4. Step 4: Simplify right side
    708,476.36x = 377,572,126,592.00
  5. Step 5: Solve for x
    x = 377,572,126,592.00/708,476.36
  6. Step 6: Final answer
    x = 532,935.39

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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.