Home / 612,397.23-918,631.59-185,946.96

Finding the Fourth Proportional to 612,397.23, 918,631.59 and 185,946.96

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Solution

The fourth proportional to 612,397.23, 918,631.59 and 185,946.96 is: 278,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,397.23 : 918,631.59 = 185,946.96 : x
  2. Step 2: Convert to fraction form
    612,397.23/918,631.59 = 185,946.96/x
  3. Step 3: Cross multiply
    612,397.23x = 918,631.59 × 185,946.96
  4. Step 4: Simplify right side
    612,397.23x = 170,816,751,520.47
  5. Step 5: Solve for x
    x = 170,816,751,520.47/612,397.23
  6. Step 6: Final answer
    x = 278,931.29

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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.