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Finding the Fourth Proportional to 935,071,030.80, 1,401,681,445.20 and 442,919,267.10

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Solution

The fourth proportional to 935,071,030.80, 1,401,681,445.20 and 442,919,267.10 is: 663,940,703.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,071,030.80 : 1,401,681,445.20 = 442,919,267.10 : x
  2. Step 2: Convert to fraction form
    935,071,030.80/1,401,681,445.20 = 442,919,267.10/x
  3. Step 3: Cross multiply
    935,071,030.80x = 1,401,681,445.20 × 442,919,267.10
  4. Step 4: Simplify right side
    935,071,030.80x = 620,831,718,415,652,864
  5. Step 5: Solve for x
    x = 620,831,718,415,652,864/935,071,030.80
  6. Step 6: Final answer
    x = 663,940,703.93

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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.