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Finding the Fourth Proportional to 623,213.84, 860,211.28 and 368,653.52

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Solution

The fourth proportional to 623,213.84, 860,211.28 and 368,653.52 is: 508,846.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,213.84 : 860,211.28 = 368,653.52 : x
  2. Step 2: Convert to fraction form
    623,213.84/860,211.28 = 368,653.52/x
  3. Step 3: Cross multiply
    623,213.84x = 860,211.28 × 368,653.52
  4. Step 4: Simplify right side
    623,213.84x = 317,119,916,315.71
  5. Step 5: Solve for x
    x = 317,119,916,315.71/623,213.84
  6. Step 6: Final answer
    x = 508,846.07

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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.