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Finding the Fourth Proportional to 607,881.60, 911,822.40 and 578,851.20

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Solution

The fourth proportional to 607,881.60, 911,822.40 and 578,851.20 is: 868,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,881.60 : 911,822.40 = 578,851.20 : x
  2. Step 2: Convert to fraction form
    607,881.60/911,822.40 = 578,851.20/x
  3. Step 3: Cross multiply
    607,881.60x = 911,822.40 × 578,851.20
  4. Step 4: Simplify right side
    607,881.60x = 527,809,490,426.88
  5. Step 5: Solve for x
    x = 527,809,490,426.88/607,881.60
  6. Step 6: Final answer
    x = 868,276.80

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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.