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Finding the Fourth Proportional to 584,009.60, 805,877.18 and 354,692.36

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Solution

The fourth proportional to 584,009.60, 805,877.18 and 354,692.36 is: 489,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,009.60 : 805,877.18 = 354,692.36 : x
  2. Step 2: Convert to fraction form
    584,009.60/805,877.18 = 354,692.36/x
  3. Step 3: Cross multiply
    584,009.60x = 805,877.18 × 354,692.36
  4. Step 4: Simplify right side
    584,009.60x = 285,838,478,844.35
  5. Step 5: Solve for x
    x = 285,838,478,844.35/584,009.60
  6. Step 6: Final answer
    x = 489,441.40

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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.