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Finding the Fourth Proportional to 615,838.80, 923,758.20 and 586,970.40

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Solution

The fourth proportional to 615,838.80, 923,758.20 and 586,970.40 is: 880,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,838.80 : 923,758.20 = 586,970.40 : x
  2. Step 2: Convert to fraction form
    615,838.80/923,758.20 = 586,970.40/x
  3. Step 3: Cross multiply
    615,838.80x = 923,758.20 × 586,970.40
  4. Step 4: Simplify right side
    615,838.80x = 542,218,720,157.28
  5. Step 5: Solve for x
    x = 542,218,720,157.28/615,838.80
  6. Step 6: Final answer
    x = 880,455.60

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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.