Home / 518,789.61-778,164.98-163,824.93

Finding the Fourth Proportional to 518,789.61, 778,164.98 and 163,824.93

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Solution

The fourth proportional to 518,789.61, 778,164.98 and 163,824.93 is: 245,731.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,789.61 : 778,164.98 = 163,824.93 : x
  2. Step 2: Convert to fraction form
    518,789.61/778,164.98 = 163,824.93/x
  3. Step 3: Cross multiply
    518,789.61x = 778,164.98 × 163,824.93
  4. Step 4: Simplify right side
    518,789.61x = 127,482,822,557.83
  5. Step 5: Solve for x
    x = 127,482,822,557.83/518,789.61
  6. Step 6: Final answer
    x = 245,731.26

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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.