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Finding the Fourth Proportional to 636,414.84, 877,347.86 and 506,211.39

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Solution

The fourth proportional to 636,414.84, 877,347.86 and 506,211.39 is: 697,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,414.84 : 877,347.86 = 506,211.39 : x
  2. Step 2: Convert to fraction form
    636,414.84/877,347.86 = 506,211.39/x
  3. Step 3: Cross multiply
    636,414.84x = 877,347.86 × 506,211.39
  4. Step 4: Simplify right side
    636,414.84x = 444,123,477,193.07
  5. Step 5: Solve for x
    x = 444,123,477,193.07/636,414.84
  6. Step 6: Final answer
    x = 697,852.17

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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.