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Finding the Fourth Proportional to 786,794,603.73, 1,085,770,931.55 and 429,562,369.23

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Solution

The fourth proportional to 786,794,603.73, 1,085,770,931.55 and 429,562,369.23 is: 592,793,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,794,603.73 : 1,085,770,931.55 = 429,562,369.23 : x
  2. Step 2: Convert to fraction form
    786,794,603.73/1,085,770,931.55 = 429,562,369.23/x
  3. Step 3: Cross multiply
    786,794,603.73x = 1,085,770,931.55 × 429,562,369.23
  4. Step 4: Simplify right side
    786,794,603.73x = 466,406,333,797,682,176
  5. Step 5: Solve for x
    x = 466,406,333,797,682,176/786,794,603.73
  6. Step 6: Final answer
    x = 592,793,000.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.