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Finding the Fourth Proportional to 605,931.70, 908,897.55 and 403,852.90

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Solution

The fourth proportional to 605,931.70, 908,897.55 and 403,852.90 is: 605,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,931.70 : 908,897.55 = 403,852.90 : x
  2. Step 2: Convert to fraction form
    605,931.70/908,897.55 = 403,852.90/x
  3. Step 3: Cross multiply
    605,931.70x = 908,897.55 × 403,852.90
  4. Step 4: Simplify right side
    605,931.70x = 367,060,911,370.40
  5. Step 5: Solve for x
    x = 367,060,911,370.40/605,931.70
  6. Step 6: Final answer
    x = 605,779.35

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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.