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Finding the Fourth Proportional to 661,641.40, 924,300.50 and 661,641.40

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Solution

The fourth proportional to 661,641.40, 924,300.50 and 661,641.40 is: 924,300.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,641.40 : 924,300.50 = 661,641.40 : x
  2. Step 2: Convert to fraction form
    661,641.40/924,300.50 = 661,641.40/x
  3. Step 3: Cross multiply
    661,641.40x = 924,300.50 × 661,641.40
  4. Step 4: Simplify right side
    661,641.40x = 611,555,476,840.70
  5. Step 5: Solve for x
    x = 611,555,476,840.70/661,641.40
  6. Step 6: Final answer
    x = 924,300.50

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.