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Finding the Fourth Proportional to 571,931,567.55, 857,897,351.33 and 571,931,567.55

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Solution

The fourth proportional to 571,931,567.55, 857,897,351.33 and 571,931,567.55 is: 857,897,351.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,931,567.55 : 857,897,351.33 = 571,931,567.55 : x
  2. Step 2: Convert to fraction form
    571,931,567.55/857,897,351.33 = 571,931,567.55/x
  3. Step 3: Cross multiply
    571,931,567.55x = 857,897,351.33 × 571,931,567.55
  4. Step 4: Simplify right side
    571,931,567.55x = 490,658,576,940,300,288
  5. Step 5: Solve for x
    x = 490,658,576,940,300,288/571,931,567.55
  6. Step 6: Final answer
    x = 857,897,351.33

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Double scale
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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.