Home / 623,756,278.80-934,626,648.60-393,312,963.60

Finding the Fourth Proportional to 623,756,278.80, 934,626,648.60 and 393,312,963.60

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Solution

The fourth proportional to 623,756,278.80, 934,626,648.60 and 393,312,963.60 is: 589,333,990.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,756,278.80 : 934,626,648.60 = 393,312,963.60 : x
  2. Step 2: Convert to fraction form
    623,756,278.80/934,626,648.60 = 393,312,963.60/x
  3. Step 3: Cross multiply
    623,756,278.80x = 934,626,648.60 × 393,312,963.60
  4. Step 4: Simplify right side
    623,756,278.80x = 367,600,777,020,401,792
  5. Step 5: Solve for x
    x = 367,600,777,020,401,792/623,756,278.80
  6. Step 6: Final answer
    x = 589,333,990.72

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1.5x scale

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.