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Finding the Fourth Proportional to 676,963.74, 934,087.48 and 435,190.89

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Solution

The fourth proportional to 676,963.74, 934,087.48 and 435,190.89 is: 600,484.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,963.74 : 934,087.48 = 435,190.89 : x
  2. Step 2: Convert to fraction form
    676,963.74/934,087.48 = 435,190.89/x
  3. Step 3: Cross multiply
    676,963.74x = 934,087.48 × 435,190.89
  4. Step 4: Simplify right side
    676,963.74x = 406,506,364,173.91
  5. Step 5: Solve for x
    x = 406,506,364,173.91/676,963.74
  6. Step 6: Final answer
    x = 600,484.69

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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.