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Finding the Fourth Proportional to 255,280,994.40, 382,921,491.60 and 255,280,994.40

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Solution

The fourth proportional to 255,280,994.40, 382,921,491.60 and 255,280,994.40 is: 382,921,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,280,994.40 : 382,921,491.60 = 255,280,994.40 : x
  2. Step 2: Convert to fraction form
    255,280,994.40/382,921,491.60 = 255,280,994.40/x
  3. Step 3: Cross multiply
    255,280,994.40x = 382,921,491.60 × 255,280,994.40
  4. Step 4: Simplify right side
    255,280,994.40x = 97,752,579,152,779,248
  5. Step 5: Solve for x
    x = 97,752,579,152,779,248/255,280,994.40
  6. Step 6: Final answer
    x = 382,921,491.60

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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.