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Finding the Fourth Proportional to 523,931.60, 785,897.40 and 168,957.20

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Solution

The fourth proportional to 523,931.60, 785,897.40 and 168,957.20 is: 253,435.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,931.60 : 785,897.40 = 168,957.20 : x
  2. Step 2: Convert to fraction form
    523,931.60/785,897.40 = 168,957.20/x
  3. Step 3: Cross multiply
    523,931.60x = 785,897.40 × 168,957.20
  4. Step 4: Simplify right side
    523,931.60x = 132,783,024,191.28
  5. Step 5: Solve for x
    x = 132,783,024,191.28/523,931.60
  6. Step 6: Final answer
    x = 253,435.80

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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.