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Finding the Fourth Proportional to 932,602.40, 1,398,903.60 and 649,167.20

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Solution

The fourth proportional to 932,602.40, 1,398,903.60 and 649,167.20 is: 973,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,602.40 : 1,398,903.60 = 649,167.20 : x
  2. Step 2: Convert to fraction form
    932,602.40/1,398,903.60 = 649,167.20/x
  3. Step 3: Cross multiply
    932,602.40x = 1,398,903.60 × 649,167.20
  4. Step 4: Simplify right side
    932,602.40x = 908,122,333,081.92
  5. Step 5: Solve for x
    x = 908,122,333,081.92/932,602.40
  6. Step 6: Final answer
    x = 973,750.80

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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.