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Finding the Fourth Proportional to 935,963,135.40, 1,403,944,703.10 and 663,865,343.40

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Solution

The fourth proportional to 935,963,135.40, 1,403,944,703.10 and 663,865,343.40 is: 995,798,015.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,963,135.40 : 1,403,944,703.10 = 663,865,343.40 : x
  2. Step 2: Convert to fraction form
    935,963,135.40/1,403,944,703.10 = 663,865,343.40/x
  3. Step 3: Cross multiply
    935,963,135.40x = 1,403,944,703.10 × 663,865,343.40
  4. Step 4: Simplify right side
    935,963,135.40x = 932,030,232,438,092,416
  5. Step 5: Solve for x
    x = 932,030,232,438,092,416/935,963,135.40
  6. Step 6: Final answer
    x = 995,798,015.10

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Double scale
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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.