Home / 739,778.61-1,020,894.90-513,555.33

Finding the Fourth Proportional to 739,778.61, 1,020,894.90 and 513,555.33

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Solution

The fourth proportional to 739,778.61, 1,020,894.90 and 513,555.33 is: 708,706.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,778.61 : 1,020,894.90 = 513,555.33 : x
  2. Step 2: Convert to fraction form
    739,778.61/1,020,894.90 = 513,555.33/x
  3. Step 3: Cross multiply
    739,778.61x = 1,020,894.90 × 513,555.33
  4. Step 4: Simplify right side
    739,778.61x = 524,286,017,264.82
  5. Step 5: Solve for x
    x = 524,286,017,264.82/739,778.61
  6. Step 6: Final answer
    x = 708,706.65

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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.