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Finding the Fourth Proportional to 835,347.60, 1,152,783.09 and 453,374.82

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Solution

The fourth proportional to 835,347.60, 1,152,783.09 and 453,374.82 is: 625,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,347.60 : 1,152,783.09 = 453,374.82 : x
  2. Step 2: Convert to fraction form
    835,347.60/1,152,783.09 = 453,374.82/x
  3. Step 3: Cross multiply
    835,347.60x = 1,152,783.09 × 453,374.82
  4. Step 4: Simplify right side
    835,347.60x = 522,642,825,927.79
  5. Step 5: Solve for x
    x = 522,642,825,927.79/835,347.60
  6. Step 6: Final answer
    x = 625,659.10

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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.