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Finding the Fourth Proportional to 562,569.20, 776,344.20 and 307,918.16

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Solution

The fourth proportional to 562,569.20, 776,344.20 and 307,918.16 is: 424,926.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,569.20 : 776,344.20 = 307,918.16 : x
  2. Step 2: Convert to fraction form
    562,569.20/776,344.20 = 307,918.16/x
  3. Step 3: Cross multiply
    562,569.20x = 776,344.20 × 307,918.16
  4. Step 4: Simplify right side
    562,569.20x = 239,050,477,590.67
  5. Step 5: Solve for x
    x = 239,050,477,590.67/562,569.20
  6. Step 6: Final answer
    x = 424,926.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.