Home / 826,641.86-1,140,702.75-463,995.65

Finding the Fourth Proportional to 826,641.86, 1,140,702.75 and 463,995.65

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Solution

The fourth proportional to 826,641.86, 1,140,702.75 and 463,995.65 is: 640,278.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,641.86 : 1,140,702.75 = 463,995.65 : x
  2. Step 2: Convert to fraction form
    826,641.86/1,140,702.75 = 463,995.65/x
  3. Step 3: Cross multiply
    826,641.86x = 1,140,702.75 × 463,995.65
  4. Step 4: Simplify right side
    826,641.86x = 529,281,108,239.52
  5. Step 5: Solve for x
    x = 529,281,108,239.52/826,641.86
  6. Step 6: Final answer
    x = 640,278.62

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Double scale
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Similar ratio
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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.