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Finding the Fourth Proportional to 562,547.54, 776,285.70 and 307,849.52

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Solution

The fourth proportional to 562,547.54, 776,285.70 and 307,849.52 is: 424,815.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,547.54 : 776,285.70 = 307,849.52 : x
  2. Step 2: Convert to fraction form
    562,547.54/776,285.70 = 307,849.52/x
  3. Step 3: Cross multiply
    562,547.54x = 776,285.70 × 307,849.52
  4. Step 4: Simplify right side
    562,547.54x = 238,979,180,127.86
  5. Step 5: Solve for x
    x = 238,979,180,127.86/562,547.54
  6. Step 6: Final answer
    x = 424,815.97

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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.