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Finding the Fourth Proportional to 525,547.86, 725,255.86 and 283,830.48

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Solution

The fourth proportional to 525,547.86, 725,255.86 and 283,830.48 is: 391,685.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,547.86 : 725,255.86 = 283,830.48 : x
  2. Step 2: Convert to fraction form
    525,547.86/725,255.86 = 283,830.48/x
  3. Step 3: Cross multiply
    525,547.86x = 725,255.86 × 283,830.48
  4. Step 4: Simplify right side
    525,547.86x = 205,849,718,689.22
  5. Step 5: Solve for x
    x = 205,849,718,689.22/525,547.86
  6. Step 6: Final answer
    x = 391,685.96

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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.