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Finding the Fourth Proportional to 636,572.74, 880,783.58 and 555,070.94

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Solution

The fourth proportional to 636,572.74, 880,783.58 and 555,070.94 is: 768,014.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,572.74 : 880,783.58 = 555,070.94 : x
  2. Step 2: Convert to fraction form
    636,572.74/880,783.58 = 555,070.94/x
  3. Step 3: Cross multiply
    636,572.74x = 880,783.58 × 555,070.94
  4. Step 4: Simplify right side
    636,572.74x = 488,897,369,687.17
  5. Step 5: Solve for x
    x = 488,897,369,687.17/636,572.74
  6. Step 6: Final answer
    x = 768,014.93

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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.