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Finding the Fourth Proportional to 608,643.20, 912,964.80 and 584,148.80

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Solution

The fourth proportional to 608,643.20, 912,964.80 and 584,148.80 is: 876,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,643.20 : 912,964.80 = 584,148.80 : x
  2. Step 2: Convert to fraction form
    608,643.20/912,964.80 = 584,148.80/x
  3. Step 3: Cross multiply
    608,643.20x = 912,964.80 × 584,148.80
  4. Step 4: Simplify right side
    608,643.20x = 533,307,292,362.24
  5. Step 5: Solve for x
    x = 533,307,292,362.24/608,643.20
  6. Step 6: Final answer
    x = 876,223.20

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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.