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Finding the Fourth Proportional to 621,973.80, 932,960.70 and 266,927.40

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Solution

The fourth proportional to 621,973.80, 932,960.70 and 266,927.40 is: 400,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,973.80 : 932,960.70 = 266,927.40 : x
  2. Step 2: Convert to fraction form
    621,973.80/932,960.70 = 266,927.40/x
  3. Step 3: Cross multiply
    621,973.80x = 932,960.70 × 266,927.40
  4. Step 4: Simplify right side
    621,973.80x = 249,032,773,953.18
  5. Step 5: Solve for x
    x = 249,032,773,953.18/621,973.80
  6. Step 6: Final answer
    x = 400,391.10

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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.