Home / 865,678.70-1,195,402.61-539,548.30

Finding the Fourth Proportional to 865,678.70, 1,195,402.61 and 539,548.30

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Solution

The fourth proportional to 865,678.70, 1,195,402.61 and 539,548.30 is: 745,054.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,678.70 : 1,195,402.61 = 539,548.30 : x
  2. Step 2: Convert to fraction form
    865,678.70/1,195,402.61 = 539,548.30/x
  3. Step 3: Cross multiply
    865,678.70x = 1,195,402.61 × 539,548.30
  4. Step 4: Simplify right side
    865,678.70x = 644,977,440,354.82
  5. Step 5: Solve for x
    x = 644,977,440,354.82/865,678.70
  6. Step 6: Final answer
    x = 745,054.08

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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.