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Finding the Fourth Proportional to 897,065,686.80, 1,342,575,221.40 and 897,065,686.80

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Solution

The fourth proportional to 897,065,686.80, 1,342,575,221.40 and 897,065,686.80 is: 1,342,575,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,065,686.80 : 1,342,575,221.40 = 897,065,686.80 : x
  2. Step 2: Convert to fraction form
    897,065,686.80/1,342,575,221.40 = 897,065,686.80/x
  3. Step 3: Cross multiply
    897,065,686.80x = 1,342,575,221.40 × 897,065,686.80
  4. Step 4: Simplify right side
    897,065,686.80x = 1,204,378,163,065,853,184
  5. Step 5: Solve for x
    x = 1,204,378,163,065,853,184/897,065,686.80
  6. Step 6: Final answer
    x = 1,342,575,221.40

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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.