Home / 626,746.92-864,964.27-354,862.72

Finding the Fourth Proportional to 626,746.92, 864,964.27 and 354,862.72

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Solution

The fourth proportional to 626,746.92, 864,964.27 and 354,862.72 is: 489,740.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,746.92 : 864,964.27 = 354,862.72 : x
  2. Step 2: Convert to fraction form
    626,746.92/864,964.27 = 354,862.72/x
  3. Step 3: Cross multiply
    626,746.92x = 864,964.27 × 354,862.72
  4. Step 4: Simplify right side
    626,746.92x = 306,943,575,079.80
  5. Step 5: Solve for x
    x = 306,943,575,079.80/626,746.92
  6. Step 6: Final answer
    x = 489,740.86

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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.