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Finding the Fourth Proportional to 573,612.75, 791,608.19 and 315,513.71

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Solution

The fourth proportional to 573,612.75, 791,608.19 and 315,513.71 is: 435,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,612.75 : 791,608.19 = 315,513.71 : x
  2. Step 2: Convert to fraction form
    573,612.75/791,608.19 = 315,513.71/x
  3. Step 3: Cross multiply
    573,612.75x = 791,608.19 × 315,513.71
  4. Step 4: Simplify right side
    573,612.75x = 249,763,237,294.74
  5. Step 5: Solve for x
    x = 249,763,237,294.74/573,612.75
  6. Step 6: Final answer
    x = 435,421.35

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Double scale
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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.