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Finding the Fourth Proportional to 570,897.66, 787,886.76 and 316,272.54

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Solution

The fourth proportional to 570,897.66, 787,886.76 and 316,272.54 is: 436,482.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,897.66 : 787,886.76 = 316,272.54 : x
  2. Step 2: Convert to fraction form
    570,897.66/787,886.76 = 316,272.54/x
  3. Step 3: Cross multiply
    570,897.66x = 787,886.76 × 316,272.54
  4. Step 4: Simplify right side
    570,897.66x = 249,186,946,817.57
  5. Step 5: Solve for x
    x = 249,186,946,817.57/570,897.66
  6. Step 6: Final answer
    x = 436,482.69

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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.