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Finding the Fourth Proportional to 500,503,411.80, 750,755,117.70 and 480,096,077.40

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Solution

The fourth proportional to 500,503,411.80, 750,755,117.70 and 480,096,077.40 is: 720,144,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,503,411.80 : 750,755,117.70 = 480,096,077.40 : x
  2. Step 2: Convert to fraction form
    500,503,411.80/750,755,117.70 = 480,096,077.40/x
  3. Step 3: Cross multiply
    500,503,411.80x = 750,755,117.70 × 480,096,077.40
  4. Step 4: Simplify right side
    500,503,411.80x = 360,434,587,095,745,344
  5. Step 5: Solve for x
    x = 360,434,587,095,745,344/500,503,411.80
  6. Step 6: Final answer
    x = 720,144,116.10

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Double scale
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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.