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Finding the Fourth Proportional to 573,336.40, 860,004.60 and 289,901.20

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Solution

The fourth proportional to 573,336.40, 860,004.60 and 289,901.20 is: 434,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,336.40 : 860,004.60 = 289,901.20 : x
  2. Step 2: Convert to fraction form
    573,336.40/860,004.60 = 289,901.20/x
  3. Step 3: Cross multiply
    573,336.40x = 860,004.60 × 289,901.20
  4. Step 4: Simplify right side
    573,336.40x = 249,316,365,545.52
  5. Step 5: Solve for x
    x = 249,316,365,545.52/573,336.40
  6. Step 6: Final answer
    x = 434,851.80

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Double scale
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Similar ratio
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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.