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Finding the Fourth Proportional to 371,287,430.40, 556,931,145.60 and 371,287,430.40

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Solution

The fourth proportional to 371,287,430.40, 556,931,145.60 and 371,287,430.40 is: 556,931,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,287,430.40 : 556,931,145.60 = 371,287,430.40 : x
  2. Step 2: Convert to fraction form
    371,287,430.40/556,931,145.60 = 371,287,430.40/x
  3. Step 3: Cross multiply
    371,287,430.40x = 556,931,145.60 × 371,287,430.40
  4. Step 4: Simplify right side
    371,287,430.40x = 206,781,533,959,552,256
  5. Step 5: Solve for x
    x = 206,781,533,959,552,256/371,287,430.40
  6. Step 6: Final answer
    x = 556,931,145.60

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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.