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Finding the Fourth Proportional to 401,068.40, 601,602.60 and 345,772.40

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Solution

The fourth proportional to 401,068.40, 601,602.60 and 345,772.40 is: 518,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,068.40 : 601,602.60 = 345,772.40 : x
  2. Step 2: Convert to fraction form
    401,068.40/601,602.60 = 345,772.40/x
  3. Step 3: Cross multiply
    401,068.40x = 601,602.60 × 345,772.40
  4. Step 4: Simplify right side
    401,068.40x = 208,017,574,848.24
  5. Step 5: Solve for x
    x = 208,017,574,848.24/401,068.40
  6. Step 6: Final answer
    x = 518,658.60

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1.5x scale

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.