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Finding the Fourth Proportional to 983,672,728.60, 1,476,075,963.30 and 370,696,869.40

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Solution

The fourth proportional to 983,672,728.60, 1,476,075,963.30 and 370,696,869.40 is: 556,258,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,672,728.60 : 1,476,075,963.30 = 370,696,869.40 : x
  2. Step 2: Convert to fraction form
    983,672,728.60/1,476,075,963.30 = 370,696,869.40/x
  3. Step 3: Cross multiply
    983,672,728.60x = 1,476,075,963.30 × 370,696,869.40
  4. Step 4: Simplify right side
    983,672,728.60x = 547,176,738,591,899,264
  5. Step 5: Solve for x
    x = 547,176,738,591,899,264/983,672,728.60
  6. Step 6: Final answer
    x = 556,258,929.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.