Home / 828,999.30-1,243,498.95-577,056.90

Finding the Fourth Proportional to 828,999.30, 1,243,498.95 and 577,056.90

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Solution

The fourth proportional to 828,999.30, 1,243,498.95 and 577,056.90 is: 865,585.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,999.30 : 1,243,498.95 = 577,056.90 : x
  2. Step 2: Convert to fraction form
    828,999.30/1,243,498.95 = 577,056.90/x
  3. Step 3: Cross multiply
    828,999.30x = 1,243,498.95 × 577,056.90
  4. Step 4: Simplify right side
    828,999.30x = 717,569,649,240.26
  5. Step 5: Solve for x
    x = 717,569,649,240.26/828,999.30
  6. Step 6: Final answer
    x = 865,585.35

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.