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Finding the Fourth Proportional to 583,698.60, 805,502.34 and 315,426.60

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Solution

The fourth proportional to 583,698.60, 805,502.34 and 315,426.60 is: 435,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,698.60 : 805,502.34 = 315,426.60 : x
  2. Step 2: Convert to fraction form
    583,698.60/805,502.34 = 315,426.60/x
  3. Step 3: Cross multiply
    583,698.60x = 805,502.34 × 315,426.60
  4. Step 4: Simplify right side
    583,698.60x = 254,076,864,398.24
  5. Step 5: Solve for x
    x = 254,076,864,398.24/583,698.60
  6. Step 6: Final answer
    x = 435,287.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.