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Finding the Fourth Proportional to 577,931.60, 866,897.40 and 542,939.60

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Solution

The fourth proportional to 577,931.60, 866,897.40 and 542,939.60 is: 814,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,931.60 : 866,897.40 = 542,939.60 : x
  2. Step 2: Convert to fraction form
    577,931.60/866,897.40 = 542,939.60/x
  3. Step 3: Cross multiply
    577,931.60x = 866,897.40 × 542,939.60
  4. Step 4: Simplify right side
    577,931.60x = 470,672,927,597.04
  5. Step 5: Solve for x
    x = 470,672,927,597.04/577,931.60
  6. Step 6: Final answer
    x = 814,409.40

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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.