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Finding the Fourth Proportional to 996,818,985.05, 1,495,228,477.58 and 996,818,985.05

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Solution

The fourth proportional to 996,818,985.05, 1,495,228,477.58 and 996,818,985.05 is: 1,495,228,477.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,818,985.05 : 1,495,228,477.58 = 996,818,985.05 : x
  2. Step 2: Convert to fraction form
    996,818,985.05/1,495,228,477.58 = 996,818,985.05/x
  3. Step 3: Cross multiply
    996,818,985.05x = 1,495,228,477.58 × 996,818,985.05
  4. Step 4: Simplify right side
    996,818,985.05x = 1,490,472,133,439,152,128
  5. Step 5: Solve for x
    x = 1,490,472,133,439,152,128/996,818,985.05
  6. Step 6: Final answer
    x = 1,495,228,477.58

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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.