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Finding the Fourth Proportional to 413,716,519,938.40, 620,574,779,907.60 and 413,716,519,938.40

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Solution

The fourth proportional to 413,716,519,938.40, 620,574,779,907.60 and 413,716,519,938.40 is: 620,574,779,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,716,519,938.40 : 620,574,779,907.60 = 413,716,519,938.40 : x
  2. Step 2: Convert to fraction form
    413,716,519,938.40/620,574,779,907.60 = 413,716,519,938.40/x
  3. Step 3: Cross multiply
    413,716,519,938.40x = 620,574,779,907.60 × 413,716,519,938.40
  4. Step 4: Simplify right side
    413,716,519,938.40x = 256,742,038,304,910,779,351,040
  5. Step 5: Solve for x
    x = 256,742,038,304,910,779,351,040/413,716,519,938.40
  6. Step 6: Final answer
    x = 620,574,779,907.60

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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.