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Finding the Fourth Proportional to 604,928.80, 907,393.20 and 575,404.30

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Solution

The fourth proportional to 604,928.80, 907,393.20 and 575,404.30 is: 863,106.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,928.80 : 907,393.20 = 575,404.30 : x
  2. Step 2: Convert to fraction form
    604,928.80/907,393.20 = 575,404.30/x
  3. Step 3: Cross multiply
    604,928.80x = 907,393.20 × 575,404.30
  4. Step 4: Simplify right side
    604,928.80x = 522,117,949,070.76
  5. Step 5: Solve for x
    x = 522,117,949,070.76/604,928.80
  6. Step 6: Final answer
    x = 863,106.45

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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.