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Finding the Fourth Proportional to 676,292.69, 933,916.13 and 434,994.15

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Solution

The fourth proportional to 676,292.69, 933,916.13 and 434,994.15 is: 600,698.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,292.69 : 933,916.13 = 434,994.15 : x
  2. Step 2: Convert to fraction form
    676,292.69/933,916.13 = 434,994.15/x
  3. Step 3: Cross multiply
    676,292.69x = 933,916.13 × 434,994.15
  4. Step 4: Simplify right side
    676,292.69x = 406,248,050,845.80
  5. Step 5: Solve for x
    x = 406,248,050,845.80/676,292.69
  6. Step 6: Final answer
    x = 600,698.57

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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.