Home / 430,827.30-646,240.95-194,631.30

Finding the Fourth Proportional to 430,827.30, 646,240.95 and 194,631.30

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Solution

The fourth proportional to 430,827.30, 646,240.95 and 194,631.30 is: 291,946.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,827.30 : 646,240.95 = 194,631.30 : x
  2. Step 2: Convert to fraction form
    430,827.30/646,240.95 = 194,631.30/x
  3. Step 3: Cross multiply
    430,827.30x = 646,240.95 × 194,631.30
  4. Step 4: Simplify right side
    430,827.30x = 125,778,716,211.74
  5. Step 5: Solve for x
    x = 125,778,716,211.74/430,827.30
  6. Step 6: Final answer
    x = 291,946.95

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Similar ratio
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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.