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Finding the Fourth Proportional to 570,291.84, 787,088.88 and 328,610.16

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Solution

The fourth proportional to 570,291.84, 787,088.88 and 328,610.16 is: 453,531.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,291.84 : 787,088.88 = 328,610.16 : x
  2. Step 2: Convert to fraction form
    570,291.84/787,088.88 = 328,610.16/x
  3. Step 3: Cross multiply
    570,291.84x = 787,088.88 × 328,610.16
  4. Step 4: Simplify right side
    570,291.84x = 258,645,402,791.02
  5. Step 5: Solve for x
    x = 258,645,402,791.02/570,291.84
  6. Step 6: Final answer
    x = 453,531.66

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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.