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Finding the Fourth Proportional to 717,547.62, 990,220.77 and 411,637.35

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Solution

The fourth proportional to 717,547.62, 990,220.77 and 411,637.35 is: 568,062.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,547.62 : 990,220.77 = 411,637.35 : x
  2. Step 2: Convert to fraction form
    717,547.62/990,220.77 = 411,637.35/x
  3. Step 3: Cross multiply
    717,547.62x = 990,220.77 × 411,637.35
  4. Step 4: Simplify right side
    717,547.62x = 407,611,853,677.76
  5. Step 5: Solve for x
    x = 407,611,853,677.76/717,547.62
  6. Step 6: Final answer
    x = 568,062.44

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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.