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Finding the Fourth Proportional to 835,445.61, 1,152,885.11 and 472,861.68

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Solution

The fourth proportional to 835,445.61, 1,152,885.11 and 472,861.68 is: 652,532.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,445.61 : 1,152,885.11 = 472,861.68 : x
  2. Step 2: Convert to fraction form
    835,445.61/1,152,885.11 = 472,861.68/x
  3. Step 3: Cross multiply
    835,445.61x = 1,152,885.11 × 472,861.68
  4. Step 4: Simplify right side
    835,445.61x = 545,155,187,597.28
  5. Step 5: Solve for x
    x = 545,155,187,597.28/835,445.61
  6. Step 6: Final answer
    x = 652,532.23

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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.