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Finding the Fourth Proportional to 566,430.23, 781,692.86 and 308,316.58

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Solution

The fourth proportional to 566,430.23, 781,692.86 and 308,316.58 is: 425,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,430.23 : 781,692.86 = 308,316.58 : x
  2. Step 2: Convert to fraction form
    566,430.23/781,692.86 = 308,316.58/x
  3. Step 3: Cross multiply
    566,430.23x = 781,692.86 × 308,316.58
  4. Step 4: Simplify right side
    566,430.23x = 241,008,868,022.18
  5. Step 5: Solve for x
    x = 241,008,868,022.18/566,430.23
  6. Step 6: Final answer
    x = 425,487.30

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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.