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Finding the Fourth Proportional to 590,533.60, 885,886.80 and 191,106.40

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Solution

The fourth proportional to 590,533.60, 885,886.80 and 191,106.40 is: 286,687.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,533.60 : 885,886.80 = 191,106.40 : x
  2. Step 2: Convert to fraction form
    590,533.60/885,886.80 = 191,106.40/x
  3. Step 3: Cross multiply
    590,533.60x = 885,886.80 × 191,106.40
  4. Step 4: Simplify right side
    590,533.60x = 169,298,637,155.52
  5. Step 5: Solve for x
    x = 169,298,637,155.52/590,533.60
  6. Step 6: Final answer
    x = 286,687.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.