Home / 611,931.60-917,897.40-162,721.80

Finding the Fourth Proportional to 611,931.60, 917,897.40 and 162,721.80

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Solution

The fourth proportional to 611,931.60, 917,897.40 and 162,721.80 is: 244,082.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,931.60 : 917,897.40 = 162,721.80 : x
  2. Step 2: Convert to fraction form
    611,931.60/917,897.40 = 162,721.80/x
  3. Step 3: Cross multiply
    611,931.60x = 917,897.40 × 162,721.80
  4. Step 4: Simplify right side
    611,931.60x = 149,361,917,143.32
  5. Step 5: Solve for x
    x = 149,361,917,143.32/611,931.60
  6. Step 6: Final answer
    x = 244,082.70

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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.