Home / 772,239.08-1,065,058.07-543,553.40

Finding the Fourth Proportional to 772,239.08, 1,065,058.07 and 543,553.40

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Solution

The fourth proportional to 772,239.08, 1,065,058.07 and 543,553.40 is: 749,658.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,239.08 : 1,065,058.07 = 543,553.40 : x
  2. Step 2: Convert to fraction form
    772,239.08/1,065,058.07 = 543,553.40/x
  3. Step 3: Cross multiply
    772,239.08x = 1,065,058.07 × 543,553.40
  4. Step 4: Simplify right side
    772,239.08x = 578,915,927,102.88
  5. Step 5: Solve for x
    x = 578,915,927,102.88/772,239.08
  6. Step 6: Final answer
    x = 749,658.94

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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.