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Finding the Fourth Proportional to 619,259.10, 928,888.65 and 382,868.70

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Solution

The fourth proportional to 619,259.10, 928,888.65 and 382,868.70 is: 574,303.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,259.10 : 928,888.65 = 382,868.70 : x
  2. Step 2: Convert to fraction form
    619,259.10/928,888.65 = 382,868.70/x
  3. Step 3: Cross multiply
    619,259.10x = 928,888.65 × 382,868.70
  4. Step 4: Simplify right side
    619,259.10x = 355,642,389,870.26
  5. Step 5: Solve for x
    x = 355,642,389,870.26/619,259.10
  6. Step 6: Final answer
    x = 574,303.05

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Half scale
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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.