Home / 630,586.60-870,228-344,125.18

Finding the Fourth Proportional to 630,586.60, 870,228 and 344,125.18

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Solution

The fourth proportional to 630,586.60, 870,228 and 344,125.18 is: 474,902.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,586.60 : 870,228 = 344,125.18 : x
  2. Step 2: Convert to fraction form
    630,586.60/870,228 = 344,125.18/x
  3. Step 3: Cross multiply
    630,586.60x = 870,228 × 344,125.18
  4. Step 4: Simplify right side
    630,586.60x = 299,467,367,141.04
  5. Step 5: Solve for x
    x = 299,467,367,141.04/630,586.60
  6. Step 6: Final answer
    x = 474,902.84

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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.