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Finding the Fourth Proportional to 935,963,136.90, 1,403,944,705.35 and 663,865,344.90

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Solution

The fourth proportional to 935,963,136.90, 1,403,944,705.35 and 663,865,344.90 is: 995,798,017.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,963,136.90 : 1,403,944,705.35 = 663,865,344.90 : x
  2. Step 2: Convert to fraction form
    935,963,136.90/1,403,944,705.35 = 663,865,344.90/x
  3. Step 3: Cross multiply
    935,963,136.90x = 1,403,944,705.35 × 663,865,344.90
  4. Step 4: Simplify right side
    935,963,136.90x = 932,030,236,037,706,496
  5. Step 5: Solve for x
    x = 932,030,236,037,706,496/935,963,136.90
  6. Step 6: Final answer
    x = 995,798,017.35

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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.